
Kazutaka Kodaka and Kotaro Uchikoshi join forces for the first time to deliver the ULTIMATE adventure game! 15 students are tasked with defending a school from grotesque monsters for 100 days. Can they make it to the end? And will they survive long enough to uncover the truth?
Modeled estimate, not a reported figure. How we estimate →
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 2.71/day in the week to Aug 2 → 2.43/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 23 chart moves that followed a price cut of more than 20% went a median of 14 places towards #1, and the 2,515 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Takumi Sumino is a totally average teenager living in the Tokyo Residential Complex, a place where every day is much like the last and nothing bad ever happens. All that changes when freakish monsters attack the town and start wreaking havoc. A strange creature calling himself Sirei appears and offers Takumi the power to protect those he holds dear... All he has to do is stab himself in the chest!
The next thing he knows, Takumi is in Last Defense Academy, a school in the middle of nowhere surrounded by a wall of otherworldly flames. He and 14 other students have been drafted into the Special Defense Unit, a team tasked with keeping the school safe for the next 100 days. How much are they willing to sacrifice to take back their normal lives and save the world from the grotesque school invaders?
The curtain rises on 100 days of war and despair...
Takumi's choices will decide his future, but there's no telling what kind of consequences these decisions might have...
When the invaders attack, it's up to you to protect the school in SRPG battles.
Use each student's unique Specialist Skills to turn the tide of battle in your favor!
Spend time with your teammates to deepen your bonds, or explore the wilderness and ruins outside the school.
You can even use the items you find to craft gifts and get even closer to your allies!
Genres
Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Sums Steam only; Nintendo publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $48.99−30% | 6.9Kreviews | 88% | — | $20.2M |
| $59.99 | — | — | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Updates
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Reviews
Themes across 894 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
i pooped while playing
我是谁?支持百日战纪。
a chill strat
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, Japanese*, Simplified Chinese, Traditional Chinese, Korean*languages with full audio support
Hours played at review time, across 896 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
SF线写的什么鬼玩意,作为tookyogame首秀,打越你行不行啊?真相大白篇让我原谅了一切,谢谢你,小高和刚,你这次发挥比打越好。
Why did they make this so long? I haven't finished the game yet. It's so long. Someone help me. Why Kodaka? Why Uchikoshi? You've created an infinite time loop chamber for me, there's no escape, and it's all a waste of time. I'm gonna die, friends. This game will kill me and they will release DLC and it will be even longer Someone free me, please. When will this end.
全成就了,真的挺好玩的,就是有些分线写的真的太狗屎了玩的是真坐牢
I enjoyed it a lot, i know people complain about it being to long, but its not like you HAVE to see everything, either way, i doubt anything like this will ever happen again.
Great game, with the sheer amount of content with several different writers there are ups and downs in terms of the quality of writing but the overarching story is well worth slogging through what little of the weaker sections of the game there are. The story takes a while to ramp up but when it does its peak. I highly recommend playing it subbed, the dub has its moments but overall the sub is far superior. This game should realistically take you around 150 hours to 100% depending on how fast you read.
Amazing experience
目前打了三周目,只能说小高还是小高阿
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $20.2M | 174.3K | 93% | $4.99 | |
| $20.1M | 37.7K | 86% | $14.99 | |
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| $20.1M | 29.6K | 90% | $19.99 | |
| $20.4M | 175.5K | 88% | $7.99 | |
| $20.4M | 59.9K | 90% | $14.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $12.7M | 25.3K | 97% | $29.99 | |
| $13.8M | 23.4K | 83% | $39.99 | |
| $1.7M | 1K | 90% | $59.99 | |
| $11.3M | 36.3K | 96% | $19.99 | |
| $456.8K | 1.5K | 91% | $5.23 | |
| $71.8K | 63 | 40% | $49.99 |