
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 24 chart moves that followed a price cut of more than 20% went a median of 9 places towards #1, and the 2,419 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% | 8.7Kreviews | 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 891 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
我真是吐了,为了凑100个结局写了那么多注水的支线,结果最最关键的TE没有做
量大管饱,但是吃的咋样别管 我觉得小高应该抛弃“100”的噱头,把天数和一些没什么意义的结局删减,出一份导演剪辑版,也许观感会好很多
I've got attached to every character in this game.. so I will wait for DLC like my life depends on it.
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 893 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
only game to ever be worth its money. anything you want its got it!
小高和刚,你写的真相大白篇是真不错,结局把我看湿了 但是打越钢太郎,你写的SF篇是真敷衍,不会写可以不写
hoooooly fawkkkk
小高你去死吧
你是谁请支持百日战纪
你是谁请支持百日战纪
takumi is like a little cat i want to squeeze the life out of him with my bare hands i love him
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 |
|---|---|---|---|---|
| $13.5M | 27.1K | 97% | $29.99 | |
| $13.8M | 23.4K | 83% | $39.99 | |
| $1.7M | 1K | 90% | $59.99 | |
| $12M | 38.7K | 96% | $19.99 | |
| $456.8K | 1.5K | 91% | $5.23 | |
| $71.8K | 63 | 40% | $49.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $20.2M | 218.6K | 97% | $6.24 | |
| $20.1M | 174.2K | 93% | $4.99 | |
| $20.3M | 63.8K | 92% | $19.99 | |
| $20.1M | 21.7K | 94% | $23.99 | |
| $20.1M | 29.6K | 90% | $19.99 | |
| $20.4M | 175.5K | 88% | $7.99 |