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Bioprototype

Bioprototype

Bioprototype, a Roguelike & Skill Customizing Rhapsody! This is an auto-bomber with programming elements. Customize your character skills with visual programming, utilize enemy organs to finish the mutation, and construct the ultimate prototype, one can survive in the endless wave of flesh.

Released May 19, 2025 Developer Emprom Game Platforms Windows · Mac · Linux Bullet HellProgrammingRogueliteDeckbuildingVampires
View on Steam ↗ $4.99 (US · as of 2026-10-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-27 · quoted reviews as of 2026-10-16.

91.9%positive1,490 reviews
Recommended · 11 found this helpful

“An interesting Survivors-like, although its main gimmick is the only unique stuff it does. Goes for the Brotato approach, no pseudo progress, lots of unique characters to unlock. The main gimmick is that weapons work with a linear programming logic. Activate weapon A every X…”

— a player, Steam review · 10 hrs played
Recommended · 5 found this helpful

“It is another survivor bullet-hell game, but with a twist! Pros + Your attacks are highly customizable. You can set an “on-hit” or “on-defeat” mechanics if you have the parts. You can even get your projectiles to shoot other types of projectiles or it tethers to a boss with…”

— a player, Steam review · 21 hrs played
Recommended · 2 found this helpful

“Awesome game. The prototypes play very differently and offer a great variety of builds”

— a player, Steam review · 41 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

2,207all-time peak
0 1k 2k 2026 1.1k avg · May 2025

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-10-26.

39achievements
14.4%median completion
3.5%rarest: Masterpiece
59.4% of players 55.0% of players 50.5% of players 41.7% of players 37.4% of players 36.8% of players 36.8% of players 34.3% of players 27.1% of players 22.4% of players 22.2% of players 22.0% of players 21.3% of players 21.3% of players 18.4% of players 18.1% of players 15.7% of players 15.1% of players 14.4% of players 14.4% of players 13.1% of players 11.8% of players 11.2% of players 9.7% of players 9.5% of players 9.5% of players 9.4% of players 8.7% of players 8.6% of players 7.7% of players 7.5% of players 7.1% of players 6.8% of players 6.2% of players 5.4% of players 5.3% of players 5.0% of players 4.1% of players 3.5% of players 59.4% 0% most earned rarest
Almost everyone has
59.4%Terminator — Link 10 Organs to a Brain
55.0%Collector — Pick up 2000 Cells
50.5%Imprisonment — Kill one Boss
Rarest badges of honor
3.5%Masterpiece — Complete Stage 5 with 3 different Prototypes
4.1%Long Journey — Complete Wave 35 in Endless Mode
5.0%Wheel of Life — Complete Wave 25 in Endless Mode

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-28. Steam prices vary by region — always confirm your local price on Steam.

$4.99current · sampled 2026-10-25 20:53 UTC
$2.99lowest since tracking began2026-10-01
US4.99 USD
EU3.55 EUR
UK3.39 GBP
Australia6.75 AUD
Canada5.59 CAD
Japan505 JPY
Brazil12.49 BRL
China18.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$2.2 China Japan EU Canada UK Australia US≈$5.0

Cheapest → most expensive, converted to USD at ECB reference rates (2026-10-26). Relative comparison only.

$0 $5 $10 09-28 10-03 10-08 10-14 10-19 10-25

Latest official news

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

May 27, 2025
Minor Patch 0527

Fixed a bug where fonts of some language were missing while using a Steam Deck

May 22, 2025
Minor Patch 0522

Fixed a localization error which may cause some achievements to be unavailable in the Steam client

May 06, 2025
Free Access to Bioprototype & Our Apology

Dear players, We sincerely apologize to all fans of Bioprototype. The game was removed due to the publisher’s policy violations on Steam, and the compensation plan did not meet your expectations. Belo

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-27.

GenresAction, Indie, Strategy
Player tagsBullet Hell · Programming · Roguelite · Deckbuilding · Vampires · Pixel Graphics · Roguelike · Tactical RPG · Action Roguelike · Hack and Slash · Indie · 2D (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Camera Comfort · Custom Volume Controls · Mouse Only Option · Playable without Timed Input · Steam Cloud
LanguagesEnglish, German, Spanish - Spain, Japanese, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Ukrainian
ControllerFull support
Achievements39
Minimum system requirements (PC)

Minimum: OS: Windows 10 64bit Processor: Intel Core i3-6100 / AMD FX-8350 Memory: 4 GB RAM Graphics: GTX 580 / AMD HD 7870 Storage: 2 GB available space