
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 →
Media

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
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
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
Hours played at review time, across 604 reviews with recorded playtime.
Reviews
Themes across 602 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
darumi is literally me and every mentally ill gen zer to exist oh golly menhera girls have me in a chokehold
It's been a long time since i played a game for 70 hours. My main complaint is the fanbase and game do a bad job of explaining how to get the most out of the game endings from an overall meta story and setting perspective (Ending 55 and Ending 0, if you're wondering.) It's otherwise exactly what I thought it would be. Characters that push waaaay into whatever archetype they fit into, most of whom I initially hated but eventually liked, banger music, and the actual combat part's pretty good but also fairly easy to break if you just hypercarry Tsubasa
this game is great and i love the story and all but i rly hope they fix the save corruption bug soon cause its getting to the point where i can't save unless i spam save etc, other than that characters is amazing and sound track is amazing 10/10 would recommend who like this sort of game but pls fix the corruption bug c:
absolute cinema
虽然有些莫名其妙的end,但抛开好的部分以外的内容来看,总体上还算是一部良作。。。吧。。。吗?
你是誰?請支持百日戰紀
Just finished my route 0 run and I GOT SO MANY QUESTIONS. peak game so far tho
千万别玩
I dont even know whats happening anymore but i love it.
目前打了三周目,只能说小高还是小高阿
Related
Related
Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Engagement
DAU/MAU are modeled from peak concurrent players (≈×8 and ×28) — Steam publishes no active-user counts, so treat these as rough estimates, not reported figures.
Audience
Audience
Games most often reviewed by the same players — an audience-affinity signal from our review sample, not full ownership data.
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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