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Mythical Concept STARNAUT

Mythical Concept STARNAUT

STARNAUT is an easy-to-learn survival auto-shooter! Equip 8 weapons and survive intense 15-30 minute runs as you fight endless waves of enemies to restore Earth. Supports mouse/keyboard and controllers!

Released Apr 28, 2025 Developer crim Co., Ltd. Platforms Windows Action RoguelikeAuto BattlerSingleplayerExploration3D Platformer
View on Steam ↗ $29.99 (US · as of 2026-05-19)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

93.6%positive78 reviews
Not recommended · 21 found this helpful

“i like the game and will finish it since i'm already at half but what makes me put a negative review is the use of generative AI for all the illustrations (cutscenes and every stella data..) it's undisclosed and really upsetting since the game has such a strong identity...”

— a player, Steam review · 8 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

52achievements
10.2%median completion
0.3%rarest: Challenger
71.0% of players 62.4% of players 60.1% of players 60.0% of players 55.4% of players 54.1% of players 49.1% of players 43.8% of players 41.2% of players 37.4% of players 34.2% of players 30.2% of players 27.6% of players 27.0% of players 23.3% of players 22.2% of players 19.2% of players 19.1% of players 16.7% of players 16.6% of players 16.4% of players 15.2% of players 14.6% of players 14.0% of players 10.9% of players 10.4% of players 10.2% of players 9.1% of players 8.9% of players 8.6% of players 8.4% of players 8.2% of players 8.0% of players 7.5% of players 6.6% of players 6.0% of players 5.9% of players 5.3% of players 5.2% of players 5.1% of players 5.0% of players 4.0% of players 3.3% of players 2.7% of players 2.2% of players 1.7% of players 1.6% of players 1.5% of players 1.1% of players 1.0% of players 0.4% of players 0.3% of players 71.0% 0% most earned rarest
Almost everyone has
71.0%Every journey begins with a single step — Launch 1 Ω Rockets
62.4%Hunter — Hidden achievement
60.1%Memory Finder — Collect 1 Lost Data
Rarest badges of honor
0.3%Challenger — Hidden achievement
0.4%Out of Stock — Hidden achievement
1.0%Container Buy — Hidden achievement

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Feb 14, 2026
Patch Notes: Feb 14, 2026

Update released on Feb 14th! The update is complete if you see Ver 1.1.1 in the top left and 4477 in the bottom right. Update Details: Adjustments to Stages 3-4, H-3-4, and T-3-4 Based on feedback reg

Dec 17, 2025
“Starnaut” × “Vampire Survivors” Vol. 2 Collaboration Update Now Available

Thank you all for waiting! Version 1.1.0 is now live!! The second Vampire Survivors collaboration update is now live!! ■ New Content (Dec 18) New Stages: X-04: Inlaid Library X-05: Dairy Plant *In cas

Oct 24, 2025
“Starnaut” × “Vampire Survivors” Collaboration Announced!

It looks like *Vampire Survivors*, but it plays like *Starnaut*. Collaboration PV link Availability: Free update Platform: Steam ■ Creator’s Comment Sawaki Takeyasu (Game Director / Crim Co., Ltd.) “T

Jul 07, 2025
7/7/2025 Update

7/7/2025 Update details. If title shows ver.1.0.1, the game is updated. ▼System ゾルキルボーナスの追加 Changed the default screen setting on first launch from fullscreen to windowed mode Added sound effects to b

May 26, 2025
STARNAUT Demo Now Live!

STARNAUT Demo Now Live! This special demo lets you experience a unique tutorial stage not found in the full game. It also features a prototype of the upcoming bonus system based on enemy defeats—so ev

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAction, Casual, Indie
Player tagsAction Roguelike · Auto Battler · Singleplayer · Exploration · 3D Platformer · PvE · Cute · Rogue-like · Rogue-lite · Action · Sci-fi · 3D (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Steam Cloud · Family Sharing
LanguagesEnglish, Japanese, Simplified Chinese
ControllerFull support
Achievements52
Official sitehttp://crim.co.jp
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows10 Processor: AMD Ryzen 5 or inten Core i5 Memory: 16 GB RAM Graphics: Graphics card supporting DirectX 11 or DirectX 12 DirectX: Version 12 Storage: 10 GB available space