Undertale
analyzed 2026-10-16 · sample of 645 English reviews across the whole review history
Across the sampled reviews, story and characters are the most frequently raised aspects, and both skew heavily positive. Players describe "the story is very interesting" and "amazing and very detailed story with multiple endings", while one calls the cast, setting, humor and music "all master class". Music drew 78 mentions with no negative ones, and emotional impact, player choice, price value and art style are likewise praised far more than criticized. Combat is often called "Very unique battle system!" and gameplay is described as not playing "like a regular RPG". Opinion splits appear around difficulty, where positive mentions outnumber negative ones but a notable minority push back, and around graphics and game length, both of which draw mixed reactions. Controls, pacing and stability are the clearest negatives, though each is raised by only a small share of reviews. The community is the one aspect where criticism outweighs praise, with players warning that someone might "miss out on this gem of a game because of crazy fans." Recurring themes players bring up include replayability and hidden content, with "each run is at least a little diffrent" and secrets that reward repeat playthroughs.
numbers checked against this report's stored data · quotes copied verbatim from reviews · plain text is the language model's own wording
Aspects
share of sample, axis to 20% · ± is the sampling uncertainty around each share
- positive
- mixed / neutral
- negative
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story
92 positive · 1 negative · 1 mixed · 1 neutral
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one of the best games I've ever player the story is very interesting and the fact that you can get a different story BASED on how you ended your last run, the art and the music itself are just amazing, …
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Cool story
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And the multiple ending and the combat system are too unique.
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characters
74 positive · 3 negative · 4 mixed · 0 neutral
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The characters, the setting, the humor, the MUSIC, all master class.
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sans is the best character
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The gameplay features a lot of puzzles interspersed with not too difficult but sometimes really challenging bullet hell fights with characters which have three dimensional personalities.
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music
78 positive · 0 negative · 0 mixed · 0 neutral
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The characters, the setting, the humor, the MUSIC, all master class.
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… player the story is very interesting and the fact that you can get a different story BASED on how you ended your last run, the art and the music itself are just amazing, especially when you think about how toby did most of it by himself, the game is still fun in 2021, just buy it already!
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The soundtrack is amazing and the visuals are surprisingly good, despite being heavily inspired by classic pixelized RPGs.
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emotional impact
47 positive · 2 negative · 2 mixed · 0 neutral
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I got to play the game the way I wanted to, and it touched my heart in a profound way.
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I shouldn't have to describe this game, music, emotions, and art style are amazing
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11/10 I cried.
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combat
31 positive · 5 negative · 0 mixed · 0 neutral
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Very unique battle system!
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And the multiple ending and the combat system are too unique.
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The gameplay features a lot of puzzles interspersed with not too difficult but sometimes really challenging bullet hell fights with characters which have three dimensional personalities.
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player choice
32 positive · 1 negative · 0 mixed · 0 neutral
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I got to play the game the way I wanted to, and it touched my heart in a profound way.
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one of the best games I've ever player the story is very interesting and the fact that you can get a different story BASED on how you ended your last run, the art and the music itself are just amazing, especially when you think about how toby did most of it by himself, …
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the amount of choice your given, your actions actually having consequences, characters feeling like real people.
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gameplay
26 positive · 0 negative · 2 mixed · 2 neutral
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Great game with superb music and great gameplay
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and you don't even play it like a regular RPG, because it isn't a normal RPG.
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Overall Undertale has great gameplay, music, and great story.
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difficulty
12 positive · 7 negative · 3 mixed · 4 neutral
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Very fun game, challenging at times, and humorous!
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Pacifist: Fun story, lovable characters, and a decent challenge.
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If you want a challenge, go for the genocide route.
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price value
24 positive · 0 negative · 1 mixed · 0 neutral
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So I would say that it would be worth that 8-10 dollars.
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Don't wait for a sale, this game is worth the 10$.
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☑ Worth the price
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writing
21 positive · 2 negative · 2 mixed · 0 neutral
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The characters, the setting, the humor, the MUSIC, all master class.
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It is pretty frustrating to dodge things in boss-fights, but it has a pretty satisfying story/ending(s) and is pretty funny too.
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Lots of clever humor and 4th wall breaking.
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see more
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art style
22 positive · 0 negative · 1 mixed · 0 neutral
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… player the story is very interesting and the fact that you can get a different story BASED on how you ended your last run, the art and the music itself are just amazing, especially when you think about how toby did most of it by himself, the game is still fun in 2021, just buy it already!
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I shouldn't have to describe this game, music, emotions, and art style are amazing
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+ The art is neat. Despite being pixel art, you can look into characters' faces and see what they're feeling. Except your own - your character is a blank slate and is never implied to be one gender or the other.
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replayability
20 positive · 2 negative · 1 mixed · 0 neutral
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Its really fun and each run is at least a little diffrent
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And the game hides a lot of surprises each playthrough.
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Wish i could erase my memory to replay this masterpiece all over again.
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community
4 positive · 13 negative · 1 mixed · 0 neutral
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community is really bad but if you stay away from that and just play the game its good
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I'd hate to have someone miss out on this gem of a game because of crazy fans. It's hilarious, it's emotional, it's relatable.
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Fanbase is cringe but it's worth ignoring that because this game is a genuine indie masterpiece.
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graphics
10 positive · 5 negative · 0 mixed · 1 neutral
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The soundtrack is amazing and the visuals are surprisingly good, despite being heavily inspired by classic pixelized RPGs.
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Game cool deteals and graet misc
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Solid, if naive, graphics. Amazing music.
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game length
4 positive · 5 negative · 1 mixed · 4 neutral
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sometimes it can take a while to do a single route but over all its an amazing game and an amazing story no matter which route you choose
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due to being short, sans undertall
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☑ Short
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controls
3 positive · 6 negative · 0 mixed · 0 neutral
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arrow only controls
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The only con is that their is only one walking speed. It'd be great if there was an option to run, it'd make going back and forth from towns more convenient.
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Really good and different game, now the control arent my favorite but thats because I suck at pc controls, but still overall great game, very emotional, I reccomend this game for sure
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bugs
3 positive · 4 negative · 0 mixed · 0 neutral
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Or else you will just get a black screen everytime you play after a genocide route.
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☑ Minor bugs
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Yeah but there are some problems like i beat it on hard mode and it wont reset the game
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addictiveness
5 positive · 0 negative · 0 mixed · 0 neutral
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really good and addicting game
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you cant stop playing its addicting and fun as long as ur good at it :>
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**Update** 63 hours and I still can't stop 6/9/16
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content amount
3 positive · 2 negative · 0 mixed · 0 neutral
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This game is very fun and there is a LOT of things you can do or discover, if your doing genocide however, make sure you know how to do a true reset (manually deleting your save file).
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You'll miss half of the content if you don't allow yourself to occasionally screw up or die.
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Has good a good combat system, rewards, achievements, and lots of weaponry.
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exploration
4 positive · 1 negative · 0 mixed · 0 neutral
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If you look a little further into the game, or the undertale wiki, you'll find that there are quite a few hidden secrets that you don't really come across in the game itself.
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And of course, secrets galore.
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I LOVE IT SECRETS,STORIES,JOKES,SANS AND MOST OF ALL DIFFERENT CHOICES!
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pacing
0 positive · 4 negative · 0 mixed · 1 neutral
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- A lot of things come out of left-field, at times crushing the drama the game was working to establish. It's a risky way to try to establish gravity in something else, but it typically doesn't pay off very well.
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It slowly grew a little tedious, though I still mostly enjoyed it at all times.
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Third, the pacing is random.
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stability
0 positive · 5 negative · 0 mixed · 0 neutral
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omega flowey softlocked me overall fun game but DONT do nuetral
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I was greeted by Chara then my game crashed then I relaunched my game and all I saw was black.
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I really enjoyed it (even through the crashes.
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Review timeline
monthly peak 8,705 reviews · all languages
monthly share rated positive · 50% reference · months with <5 reviews faded
the timeline as a table
| month | reviews | up | down | positive | note |
|---|---|---|---|---|---|
| Sep 2015 | 1,786 | 1,765 | 21 | 99% | |
| Oct 2015 | 4,675 | 4,598 | 77 | 98% | |
| Nov 2015 | 4,627 | 4,562 | 65 | 99% | |
| Dec 2015 | 4,994 | 4,821 | 173 | 97% | |
| Jan 2016 | 5,885 | 5,676 | 209 | 96% | |
| Feb 2016 | 4,522 | 4,368 | 154 | 97% | |
| Mar 2016 | 2,959 | 2,849 | 110 | 96% | |
| Apr 2016 | 2,246 | 2,154 | 92 | 96% | |
| May 2016 | 1,940 | 1,849 | 91 | 95% | |
| Jun 2016 | 2,135 | 2,031 | 104 | 95% | |
| Jul 2016 | 2,646 | 2,508 | 138 | 95% | |
| Aug 2016 | 1,481 | 1,410 | 71 | 95% | |
| Sep 2016 | 1,153 | 1,081 | 72 | 94% | |
| Oct 2016 | 1,025 | 972 | 53 | 95% | |
| Nov 2016 | 6,007 | 5,902 | 105 | 98% | |
| Dec 2016 | 1,907 | 1,806 | 101 | 95% | |
| Jan 2017 | 2,577 | 2,409 | 168 | 93% | |
| Feb 2017 | 1,654 | 1,578 | 76 | 95% | |
| Mar 2017 | 1,189 | 1,145 | 44 | 96% | |
| Apr 2017 | 974 | 933 | 41 | 96% | |
| May 2017 | 813 | 770 | 43 | 95% | |
| Jun 2017 | 1,150 | 1,088 | 62 | 95% | |
| Jul 2017 | 1,075 | 1,019 | 56 | 95% | |
| Aug 2017 | 1,005 | 954 | 51 | 95% | |
| Sep 2017 | 830 | 788 | 42 | 95% | |
| Oct 2017 | 876 | 823 | 53 | 94% | |
| Nov 2017 | 3,136 | 3,065 | 71 | 98% | |
| Dec 2017 | 1,122 | 1,038 | 84 | 93% | |
| Jan 2018 | 1,626 | 1,508 | 118 | 93% | |
| Feb 2018 | 818 | 774 | 44 | 95% | |
| Mar 2018 | 722 | 668 | 54 | 93% | |
| Apr 2018 | 543 | 508 | 35 | 94% | |
| May 2018 | 558 | 522 | 36 | 94% | |
| Jun 2018 | 737 | 682 | 55 | 93% | |
| Jul 2018 | 759 | 714 | 45 | 94% | |
| Aug 2018 | 515 | 488 | 27 | 95% | |
| Sep 2018 | 637 | 593 | 44 | 93% | |
| Oct 2018 | 525 | 495 | 30 | 94% | |
| Nov 2018 | 2,271 | 2,225 | 46 | 98% | |
| Dec 2018 | 955 | 905 | 50 | 95% | |
| Jan 2019 | 933 | 882 | 51 | 95% | |
| Feb 2019 | 731 | 680 | 51 | 93% | |
| Mar 2019 | 687 | 653 | 34 | 95% | |
| Apr 2019 | 474 | 449 | 25 | 95% | |
| May 2019 | 476 | 452 | 24 | 95% | |
| Jun 2019 | 1,151 | 1,101 | 50 | 96% | |
| Jul 2019 | 1,510 | 1,451 | 59 | 96% | |
| Aug 2019 | 472 | 445 | 27 | 94% | |
| Sep 2019 | 436 | 408 | 28 | 94% | |
| Oct 2019 | 587 | 567 | 20 | 97% | |
| Nov 2019 | 2,819 | 2,784 | 35 | 99% | |
| Dec 2019 | 2,935 | 2,875 | 60 | 98% | |
| Jan 2020 | 2,704 | 2,641 | 63 | 98% | |
| Feb 2020 | 2,176 | 2,130 | 46 | 98% | |
| Mar 2020 | 2,688 | 2,626 | 62 | 98% | |
| Apr 2020 | 2,474 | 2,416 | 58 | 98% | |
| May 2020 | 2,199 | 2,139 | 60 | 97% | |
| Jun 2020 | 2,514 | 2,459 | 55 | 98% | |
| Jul 2020 | 3,647 | 3,567 | 80 | 98% | |
| Aug 2020 | 2,426 | 2,358 | 68 | 97% | |
| Sep 2020 | 2,186 | 2,140 | 46 | 98% | |
| Oct 2020 | 2,185 | 2,134 | 51 | 98% | |
| Nov 2020 | 2,564 | 2,499 | 65 | 97% | |
| Dec 2020 | 2,953 | 2,870 | 83 | 97% | |
| Jan 2021 | 3,950 | 3,825 | 125 | 97% | |
| Feb 2021 | 2,594 | 2,526 | 68 | 97% | |
| Mar 2021 | 2,342 | 2,260 | 82 | 96% | |
| Apr 2021 | 2,053 | 2,001 | 52 | 97% | |
| May 2021 | 1,980 | 1,925 | 55 | 97% | |
| Jun 2021 | 2,388 | 2,311 | 77 | 97% | |
| Jul 2021 | 3,180 | 3,061 | 119 | 96% | |
| Aug 2021 | 2,206 | 2,133 | 73 | 97% | |
| Sep 2021 | 2,249 | 2,186 | 63 | 97% | |
| Oct 2021 | 2,542 | 2,482 | 60 | 98% | |
| Nov 2021 | 2,183 | 2,129 | 54 | 98% | |
| Dec 2021 | 2,598 | 2,525 | 73 | 97% | |
| Jan 2022 | 2,985 | 2,888 | 97 | 97% | |
| Feb 2022 | 2,247 | 2,179 | 68 | 97% | |
| Mar 2022 | 1,777 | 1,715 | 62 | 97% | |
| Apr 2022 | 1,561 | 1,510 | 51 | 97% | |
| May 2022 | 1,574 | 1,512 | 62 | 96% | |
| Jun 2022 | 1,760 | 1,697 | 63 | 96% | |
| Jul 2022 | 1,776 | 1,713 | 63 | 96% | |
| Aug 2022 | 1,620 | 1,559 | 61 | 96% | |
| Sep 2022 | 1,471 | 1,398 | 73 | 95% | |
| Oct 2022 | 1,521 | 1,470 | 51 | 97% | |
| Nov 2022 | 1,668 | 1,627 | 41 | 98% | |
| Dec 2022 | 1,637 | 1,578 | 59 | 96% | |
| Jan 2023 | 2,426 | 2,339 | 87 | 96% | |
| Feb 2023 | 1,733 | 1,666 | 67 | 96% | |
| Mar 2023 | 2,526 | 2,437 | 89 | 96% | |
| Apr 2023 | 1,916 | 1,852 | 64 | 97% | |
| May 2023 | 1,711 | 1,643 | 68 | 96% | |
| Jun 2023 | 1,845 | 1,785 | 60 | 97% | |
| Jul 2023 | 3,699 | 3,539 | 160 | 96% | |
| Aug 2023 | 3,231 | 3,102 | 129 | 96% | |
| Sep 2023 | 2,407 | 2,303 | 104 | 96% | |
| Oct 2023 | 2,246 | 2,145 | 101 | 96% | |
| Nov 2023 | 2,569 | 2,475 | 94 | 96% | |
| Dec 2023 | 2,801 | 2,683 | 118 | 96% | |
| Jan 2024 | 3,081 | 2,962 | 119 | 96% | |
| Feb 2024 | 1,972 | 1,906 | 66 | 97% | |
| Mar 2024 | 2,667 | 2,567 | 100 | 96% | |
| Apr 2024 | 2,299 | 2,194 | 105 | 95% | |
| May 2024 | 2,461 | 2,357 | 104 | 96% | |
| Jun 2024 | 4,730 | 4,549 | 181 | 96% | |
| Jul 2024 | 4,374 | 4,209 | 165 | 96% | |
| Aug 2024 | 2,919 | 2,809 | 110 | 96% | |
| Sep 2024 | 2,062 | 1,991 | 71 | 97% | |
| Oct 2024 | 2,146 | 2,074 | 72 | 97% | |
| Nov 2024 | 2,817 | 2,725 | 92 | 97% | |
| Dec 2024 | 3,886 | 3,758 | 128 | 97% | |
| Jan 2025 | 4,138 | 3,989 | 149 | 96% | |
| Feb 2025 | 3,544 | 3,426 | 118 | 97% | |
| Mar 2025 | 8,043 | 7,766 | 277 | 97% | |
| Apr 2025 | 5,068 | 4,925 | 143 | 97% | |
| May 2025 | 4,221 | 4,087 | 134 | 97% | |
| Jun 2025 | 7,940 | 7,648 | 292 | 96% | |
| Jul 2025 | 8,705 | 8,409 | 296 | 97% | |
| Aug 2025 | 5,391 | 5,191 | 200 | 96% | |
| Sep 2025 | 5,494 | 5,274 | 220 | 96% | |
| Oct 2025 | 4,282 | 4,109 | 173 | 96% | |
| Nov 2025 | 3,202 | 3,074 | 128 | 96% | |
| Dec 2025 | 3,787 | 3,633 | 154 | 96% | |
| Jan 2026 | 3,915 | 3,773 | 142 | 96% | |
| Feb 2026 | 2,829 | 2,709 | 120 | 96% | |
| Mar 2026 | 3,884 | 3,366 | 518 | 87% | |
| Apr 2026 | 3,264 | 2,803 | 461 | 86% | |
| May 2026 | 2,826 | 2,698 | 128 | 95% | |
| Jun 2026 | 4,024 | 3,834 | 190 | 95% | |
| Jul 2026 | 6,341 | 6,084 | 257 | 96% | |
| Aug 2026 | 5,504 | 5,275 | 229 | 96% | |
| Sep 2026 | 4,733 | 4,570 | 163 | 97% | |
| Oct 2026 | 1,971 | 1,896 | 75 | 96% |
How this report was made
- Population
- all Steam reviews of the game (every language, purchase type, and verdict), walked newest-first per window; only English-language reviews are analyzed
- Sample
- 645 English reviews, time-proportional draw over 134 windows (newest-first within each), taken from an all-language walk and kept English-only — where English is a minority the sample runs smaller than the draw, and every margin of error is computed at 645
- Aspect yield
- 254 of 645 analyzed reviews carry at least one aspect (39.4%); every share on this page divides by all 645
- Interval regime
- calm: standard margins of error for a share of a sample (Wilson interval), no widening needed
- Fetch paths
- 134 time windows fetched directly (windowed)
- Language mix
- 1,000 fetched: english 647 · brazilian 101 · spanish 78 · 20 more
- Steam-marked windows
- none flagged by Steam (Valve's off-topic flagging began March 2019)
- Marked share
- 0.0% of sample inside marked windows, under the 2% floor
- Narrative
- passed the grounding gate first try
- Evidence floor
- aspects and emergent themes appear only with 5+ supporting reviews; smaller counts sit at the classifier's false-positive floor
- Instrument readings
- measured once on the study corpus for this model and prompt: frozen calibration, not properties of this run
- · aspect tagging vs. human labels
- 0.801 [0.752–0.844] (F1 against a human-labeled test set; 1.0 is best)
- · quotes filed under the wrong aspect
- 11.6% [6.6–19.6] of quotes, measured by hand on a sample; lower is better — measured on the prior model (2026-08-05); re-measurement pending
- · independent model vs. production labels
- 0.791 [0.772–0.810] (F1 of the production labeler against an independent judge model) — measured on the prior model (2026-07-25); re-measurement pending
- Versions
- deepseek-flash · prompt classify-v1 · ontology v2
- Run
- serve-20261016T005705Z-b408d61f · code 798e06c
full methodology in the milestone write-ups