I Am Sakuya FPS: Lunarian Invasion

I Am Sakuya FPS: Lunarian Invasion

Sigyaad Team · September 25, 2025 · FPS, Action, Anime, Colorful, Bullet Hell

Buy I Am Sakuya FPS: Lunarian Invasion from Steam at $9.99 — the cheapest of 1 store we compare.

PC
Mixed65% · 55
Best price
$9.99
lowest tracked $4.99
Steam Buy at Steam

Prices last checked

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Where to buy I Am Sakuya FPS: Lunarian Invasion — official stores

Steam
Steam
Standard Edition · Steam
$9.99
Buy

I Am Sakuya FPS: Lunarian Invasion price by region

I Am Sakuya FPS: Lunarian Invasion costs £8.50 in the United Kingdom, €9.75 in Europe (EUR), $9.99 in the United States, $9.99 in Georgia (USD), CA$12.99 in Canada, A$14.50 in Australia, NZ$14.75 in New Zealand, R$32.99 in Brazil and zł45.99 in Poland right now.

Cheapest I Am Sakuya FPS: Lunarian Invasion offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £8.50 £8.50 — 1
Europe (EUR) €9.75 €9.75 — 1
United Statesyour region $9.99 $9.99 — 1
Georgia (USD) $9.99 $9.99 — 1
Canada CA$12.99 CA$12.99 — 1
Australia A$14.50 A$14.50 — 1
New Zealand NZ$14.75 NZ$14.75 — 1
Brazil R$32.99 R$32.99 — 1
Poland zł45.99 zł45.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About I Am Sakuya FPS: Lunarian Invasion

This is a unofficial fangame of the Touhou Project series. It is permitted under the official guidelines. Please support the official releases, some of which are available on Steam!

FEATURES
Stop time and decimate your foes! In 3d!!Heart-pounding FPS gameplay with bullet hell elements! No cheap enemies, just pure skill!

Breathtaking landscapes and battlefields, perfectly realized in full jaw-dropping 3d!

Gorgeous 3d models that will almost make you feel bad for shooting at them!

Adrenaline inducing soundtrack to keep your blood pumping throughout the game!
Unforgettable weapons such as the Cirno plush doll! 

WE HAVE A TRI-BARRELED SHOTGUN!


STORY



After losing to one of the Watasuki sister's during the moon rabbit incident, Sakuya is unable to find peace until she exacts her revenge. With the help of a certain blue haired kappa, she teleports herself onto the moon and begins her quest for vengeance.

I Am Sakuya FPS: Lunarian Invasion — game info

Platforms
Windows
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jul 28, 2026
man this level design is a huge step down from the previous i am sakuya game.
2 found this helpful
Recommended Sep 6, 2026
There are not a lot of Touhou FPS games, and Lunarian Invasion is decent for what it is. There's definitely some jank and the level design leaves a lot to be desired. The lack of mid-level checkpoints can be annoying when you catch a stray bullet in the final room, and I wish the 1UPS functioned as actual lives instead of a health refill. But there's a lot of charm here too. The game especially shines in the weapon designs, enemy models and animations. It's a joy blasting enemies with Cirno fumo, and the sound design and music is decent. The combat is perfectly servicable, if a bit rough around the edges.
1 found this helpful
Recommended Jul 28, 2026
So, I've finally decided to give I Am Sakuya's sequel a try, and yeah, it still feels like a badly made Serious Sam clone even after all the updates. I am recommending the game though, even if it's inferior to the prequel, because the developer is still actively updating and improving the game, step by step. - The game feels REALLY choppy, like im playing on 60 FPS even if i set my cap to 240 or unlimited, with or without VSync. - The time resource is so limited I rarely ever used it, just because of how limited it was. I don't understand why the time freeze is so unimportant in this game compared to the first one, it feels like it's not the main focus of the game, even though that's Sakuya's entire gist. - Grass floating on the sky level. - Using CTRL (time freeze) works even while in the visual novel part of the game. (wastes your resource) - The boss spawns in orbs even while time is frozen, which disappear after unfreezing time. - Textures clipping on the climb up to the tengu castle thingy. - Shotgun is basically a sniper rifle. (it's very funny) - Pathfinding is so messy on the level after the boss, units cannot ascend/descend small slopes. - The escape menu closes…
1 found this helpful
Recommended Jun 8, 2026
Overall I can say that this's a short but enjoyable game with good arts and music (wish it was longer though) Sure there's a bit of lag and some minor visual (and technical) bugs in it but they aren't game breaking to the point that the game become unplayable because of them (not to mention the dev is actively fixing them) Hopefully there'll be a steam workshop for the game just like its predecessor Side note: [spoiler] Contrast to their names Hard and Lunatic modes aren't exactly harder than Normal and if anything they're arguebly even easier than Normal mode [/spoiler] ([spoiler] This become more obvious during boss fight when using the shotgun or the Knives in Lunatic mode which give you unlimited ammo [/spoiler])
1 found this helpful
Recommended Aug 17, 2026
This is what I want in a game, it's not perfect and it does not have to be. The dev has been giving consistent updates to improve not only the quality of life but the gameplay its-self. They are willing to listen to what people have to say and improve the game around that feedback, and I can appreciate it greatly. If you liked the previous I am Sakuya games then I can whole heartedly recommend playing this one. Even if you have not I recommend giving this a try because its full of heart and improving every update. 10/10 please keep making the beautiful games you are making, thanks a ton.
Recommended Jul 24, 2026
just buy it

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