
Screenshots

Watch trailer on Steam ↗CelSector
YumamiSoft · Published by YumamiSoft
Content notice: This game contains explicit adult content not suitable for all ages. Content includes extreme violence, gore, full nudity, and graphic sexual scenes. The game also features non-consensual sex and sexual acts involving non-humans/monsters. All characters are over the age of 20.
Last updated 28 Sept 2026
A 2D sci-fi action side-scroller where you fight to survive a facility overrun by biological nightmares. Blast through enemies with an arsenal of firearms, deeply customize your character's appearance, and avoid hazards, traps, and mutations.
Action · 2026 · More free games
About this game

Lock disengaged. The heavy cell door opens into a chilling silence. The facility has fallen, transformed into a labyrinth where biological nightmares roam. In a world where the boundaries of flesh are violated and rewritten, the survivors must fight to stay human. Will you escape the darkness, or will your body be claimed by the aberrations prowling the halls?

High-Octane Side-Scrolling Combat
Navigate a vast, interconnected research facility using an arsenal of weaponry and agile movement. Face off against over 35 unique enemy types, including infected mutants, large insects, and extraterrestrial parasites. Every encounter is brought to life with fluid, multi-stage 2D animations, highlighting the brutal struggle for survival.

Specialized Arsenal
Equip yourself with 13 distinct firearms designed for containment and eradication. From tactical sidearms to heavy-yield experimental weaponry, you must choose the right caliber to neutralize the evolving biological threats and aberrations prowling the facility.

Deep Exploration & Atmospheric World-Building
Journey through 6 meticulously hand-drawn sectors. From the claustrophobic confines of the Prison and the grime of the Sewers to the visceral interiors of Parasitic Nests and high-tech Laboratories, the world of CelSector is vast and rich with detail.

Advanced Character Customization
Find and equip gear scattered throughout the facility to tailor your survivor’s appearance.
16 Independent Layers: Combine hairstyles, tops, innerwear, accessories, and much more for millions of unique looks.
Color & Texture Control: Customize your character’s palette with 40 colors and multiple texture variations.
Preset System: Save up to 12 custom outfits to switch between instantly during your journey.

The Biological Survival System
CelSector features a deep "Status" system where the environment and enemies dynamically affect your character:
Dynamic Clothing Degradation: Clothing sustains visible damage during combat. As your clothing tears, your vulnerability to environmental hazards and enemy grabs increases.
Parasitic Infection: Certain enemies can host biological agents within the player. Strategically fight to avoid their physical mutations and debuffs.
Tactical Status Ailments: Navigate hazards like slowing mucus, restrictive spider silk, and sensory-altering toxins that force you to adapt your strategy on the fly.
Full game is uncensored.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: 10
- Processor: Intel Core 2 Duo E4500 @ 2.2GHz or AMD Athlon 64 X2 5600+ @ 2.8 GHz
- Memory: 8 GB RAM
- Graphics: GeForce GTX 560 Ti (1GB), Radeon HD 7750 (1GB)
- DirectX: Version 11
- Storage: 1 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: 11
- Processor: Intel Core i5 2300 or AMD FX6120
- Memory: 16 GB RAM
- Graphics: GeForce GTX 1050 (2GB), Radeon R9 380 (2GB)
- DirectX: Version 12
- Storage: 2 GB available space
Supported Languages
Latest news
AnnouncementsOfficial
Official CelSector Steam Demo Coming Soon!
Welcome to the Official CelSector Community Hub! Hello everyone! Development on the full release is progressing smoothly, but we didn't want you to have to wait until launch to get a feel for the gameplay. We have officially submitted the CelSector Steam Demo and will be releasing it directly here on Steam in just a few days! What to Expect in the Demo:The Complete First Level: Play through the opening sector of the facility. 4 Unique Enemy Types: With fully animated scenes. 3 Different Weapons: Test out different guns and playstyles. Clothing Customization: Multiple clothing pieces and layers to mix, match, and style. Status Effects: Real-time physical and visual status effects that alter gameplay. Thank you so much to everyone who has wishlisted and followed the game so far! Your support means the world to us, and we will post another update the moment the demo is officially live to download. If you would like to share feedback or chat with us, feel free to join our official Discord: https://discord.gg/umj5U36cmg Stay tuned for more updates soon!Read full article on Community Announcements (yumamisoft)






