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The Citadel
The Citadel is a brutal first person shooter, and a love letter to classic games such as Marathon, Doom and Wolfenstein 3d. Descend into the depths of a dark citadel, and fight through 6 Episodes and 30 levels of action packed with 6 challenging bosses. Go forth, Martyr.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-15.
What reviewers agree on
69 of the 103 reviews raise this.
“I want to recommend this game. It's a fun classic style shooter with good weapon variety and fun levels. Different enemies force you to engage in diverse ways and combined with the extremely variable levels it never…”
“Great boomer shooter. Very nice art, especially if you're into gurokino & the weapon selection is great with upgrades as you progress that can alter their fire/special modes. You can also look down to stare at some…”
“Brutal doom but every enemy is an anime girl, or a femboy, or a fetus, and they explode into fleshy bits when killed. Okay but despite the description the gameplay is pretty good. Short levels and satisfying gunplay…”
19 of the 103 reviews raise this.
“Great boomer shooter. Very nice art, especially if you're into gurokino & the weapon selection is great with upgrades as you progress that can alter their fire/special modes. You can also look down to stare at some…”
“[i]asterisk signs are used for minor details and notes[/i] ---{ Graphics }--- ☐ You forget what reality is ☐ Masterpiece ☐ Beautiful ☑ An original artistic direction ☐ Good ☑ Decent ☐ normal ☐ Bad ☐ Don‘t look too long…”
“Really cool game, fun and simple. Some people say it's like Wolfenstein, but I think it's more like Marathon, I don't know why. Visually it's pretty remarkable, but gets stale, because it never changes from chapter to…”
10 of the 103 reviews raise this.
“Pretty fun game. smooth game play and i like how the tactical setting feels for bullet spread and bullet physics at range. you can play it like doom or you can play it like a classic rainbow six stealth game. A mix of…”
“Everything that needs to be said about this game has already been said but I'd like to point out that you can turn off gore in the settings if you are uncomfortable with that. And if you can see past that you have a…”
“It crashes many times during start up, regardless i managed to play. This game is exactly my cup of ocha. The gunplay is great and there's so many to choose from with different mechanics. The movement is fluid and fun,…”
8 of the 103 reviews raise this.
“"This is just like one of my japanese animes!" Gameplay was pretty good, weapons felt punchy, most weapons had some use aside the ones with super rare ammo or that couldn't hit ♥♥♥♥ like the shotgun (before the narrow…”
“This is one of the greats for me to be sure. I was worried that this will get overshadowed by its sequel, which is much better in many ways game play wise, but The Citadel still has that something and was worth…”
“Everything that needs to be said about this game has already been said but I'd like to point out that you can turn off gore in the settings if you are uncomfortable with that. And if you can see past that you have a…”
8 of the 103 reviews raise this.
“the story in the second is much more explained than in the first, the gore too, the combat too its all better but i recommend this game highly and the first one as both are great”
“Amazing game, the story is good and overall lore is interesting. If your one of those people who get immersed in a game's lore and how complex it is then this is for you. If not then the gameplay you will still enjoy.…”
“Good stuff! Juicy gore and sounds, no-hitscan ballistic shooting, sexy anime girls, good music and level design, atmospheric lore and narrative!”
24 of the 103 reviews raise this · 20 of them still recommend the game.
“I want to recommend this game. It's a fun classic style shooter with good weapon variety and fun levels. Different enemies force you to engage in diverse ways and combined with the extremely variable levels it never…”
“Really cool game, fun and simple. Some people say it's like Wolfenstein, but I think it's more like Marathon, I don't know why. Visually it's pretty remarkable, but gets stale, because it never changes from chapter to…”
“Great game but it feels like it doesn't want you to have fun at times. It crashes frequently and its more common in the best parts of the game like picking up a powerful temporary weapon and mowing down waves on enemies…”
11 of the 103 reviews raise this · 10 of them still recommend the game.
“[i]asterisk signs are used for minor details and notes[/i] ---{ Graphics }--- ☐ You forget what reality is ☐ Masterpiece ☐ Beautiful ☑ An original artistic direction ☐ Good ☑ Decent ☐ normal ☐ Bad ☐ Don‘t look too long…”
“Really cool game, fun and simple. Some people say it's like Wolfenstein, but I think it's more like Marathon, I don't know why. Visually it's pretty remarkable, but gets stale, because it never changes from chapter to…”
“"This is just like one of my japanese animes!" Gameplay was pretty good, weapons felt punchy, most weapons had some use aside the ones with super rare ammo or that couldn't hit ♥♥♥♥ like the shotgun (before the narrow…”
11 of the 103 reviews raise this · 9 of them still recommend the game.
“Pretty fun game. smooth game play and i like how the tactical setting feels for bullet spread and bullet physics at range. you can play it like doom or you can play it like a classic rainbow six stealth game. A mix of…”
“Game's good. Fun movement, weapons and levels. The reload system is fun. It does have a bad habit of crashing but it usually won't wipe much progress. It does get a bit repetitive towards the end, and there are many…”
“somehow worse platforming than dark souls”
10 of the 103 reviews raise this · 10 of them still recommend the game.
“Really cool game, fun and simple. Some people say it's like Wolfenstein, but I think it's more like Marathon, I don't know why. Visually it's pretty remarkable, but gets stale, because it never changes from chapter to…”
“A great short boomer fps with modern gameplay elements, the only downside is that the game can crash when some levels load but fortunately you do not have to repeat the level again and instead it goes straight to the…”
“I actually had quite a bit of fun with this game surprisingly. the levels were short and sure I got confused sometimes, there's little hand holding but all the mechanics are there from start to finish. That being said…”
8 of the 103 reviews raise this · 8 of them still recommend the game.
“Really cool game, fun and simple. Some people say it's like Wolfenstein, but I think it's more like Marathon, I don't know why. Visually it's pretty remarkable, but gets stale, because it never changes from chapter to…”
“Game good but hard. Play as sexy anime girl, get ♥♥♥♥♥♥♥♥♥♥♥ by the basic enemy till you learn. Would headcharge the brickwall again”
“Game's good. Fun movement, weapons and levels. The reload system is fun. It does have a bad habit of crashing but it usually won't wipe much progress. It does get a bit repetitive towards the end, and there are many…”
Counted across 103 English reviews, sampled to match this game's 92.7% positive rating · as of 2026-05-15
“Really great Doom-lik/Tactical-ish game! It is really unique in the pile of boomer shooter/Doom like games we got now day! And anime/Guro/Style are really great, The dev really go all out! You can see the passion of that guy while playing. Its feel really good when you playing a…”
— a player, Steam review · 6 hrs played“This game is quite... something. But definitely good, if you're willing to disregard some aspects I'll discuss here To start off, the game is a DOOM-inspired shooter. Therefore, the game is gory. There's a setting to turn that off, but it kind of takes away from the game. If you…”
— a player, Steam review · 9 hrs played“Great game that has a retro FPS aesthetic but brings in some newer design ideas, creating an interesting blend of old and new. The levels don't vary aesthetically but set themselves apart by having fairly unique designs. The weapons are super satisfying and apart from maybe one…”
— a player, Steam review · 9 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-04). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Sorry for the inconvenient(2022/02/23)
The game was temporarily unplayable due to an update on February 22, 2022. We apologize for any inconvenience this may have caused. The game files have been replaced with playable ones as of now (2022
Minor minor minor minor update(still 2.17.4)
・remove the wearing power armor when you return to the hub area
Minor minor minor update(still 2.17.4)
Fixed ・HUD flickering on switching weapons ・not working "previous weapon" function
Minor update 2.17.4
・Changed the specification of power armor stomping. ・Fixed the problem that the maximum armor value is not taken over when loading. ・Laser designator shows safety distance. ・Flickering shown in some o
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-15.
| Genres | Action, Casual, Indie |
| Player tags | FPS · Retro · Gore · Old School · Indie · Anime · Violent · Singleplayer · Shooter · 2.5D · Action · Sci-fi (SteamSpy community voting) |
| Features | Single-player · Family Sharing |
| Languages | English |
| Official site | https://ci-en.dlsite.com/creator/3655 |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 64 bit Processor: Intel Core i-5-10210U Memory: 8 GB RAM Graphics: NVIDIA GeForce 820M 1GB VRAM DirectX: Version 12 Storage: 800 MB available space