Games like Volunteer

Deadly Rain is a survival horror FPS game that puts you in a terrifying fight for survival against hordes of scary mutants in a rainy, abandoned village. Find and manage resources to stay alive in the worst and most unexpected situations.

Limsod is an FPS set in a post-apocalyptic universe in which you must fight for survival in a world infested with flesh-eating zombies. Upgrade your equipment and play in a variety of maps and game modes.

Bloodlit is a hardcore first-person shooter designed to unite slow-paced oppressive survival horror tension with fast-paced reflex-driven close-quarters combat. Carve your path through the blood and ruin. Regret is for the dead.

A fast paced silly cutegore FPS! Earth has been taken over by demons. A catgirl codenamed MeowMeow fights back! MEOW, GUN, CLAW and BLOW UP hordes of evil demons, zombies, and other monsters in colorful environments with tons of weapons! The game runs on the FTEQW engine.

The virus has devastated cities and lands. Most of the population died, the rest turned into the walking dead. You're one of the last survivors. Do whatever it takes to last another day.

Dive into the mysteries of the Backrooms with a solo-developed survival game. Explore eerie hallways, uncover secrets alone or in multiplayer (up to 6 players), and take on unique challenges.

On a deserted island, a recurring phenomenon of large numbers of infected individuals appearing and disappearing continued. It was discovered that the cause was a virus, and efforts to uncover the virus and eradicate it have begun.

You are sent to a Vaccine Zombie colony because you have developed early symptoms of the illness that will soon make you a zombie. You may need to eliminate hundreds of zombies to find the antidote. If successful, your mission will be extended to destroy the aliens that started this.

Winston thought he could use heavy machinery and power from the depths of hell to transform sinful men into magic ponies. Winston was wrong.

A short first person wave defense surrounding mutant creatures invading your town. Collect materials and fire power from the hardware and gun store, build traps to defend yourself, and survive 6 nights. Comes with Unreal Engine 5 project files.

Escape the Backrooms is a 1-4 player co-op horror exploration game. Traverse 30+ eerie backrooms levels while avoiding entities and other dangers. Try to escape but be warned: survival isn't guaranteed.

A Single and cooperative game for 4 players, you are a fighter of a special purpose unit, your task is to destroy waves of zombies by taking convenient positions and using tactic

Slaughter hordes of zombies and challenging bosses in Bodyrain: a zombie FPS game! Accumulate money to acquire new weapons and gain experience to strengthen your character and clean up Dawn City!

Escape the zombie infected zone, using an arsenal of weapons, in this arena shooter game.

You break into the mansion at night. It’s huge and built like a maze. You're trying to escape, but the monster is after you! The chase begins. RUN!!

Cursed Dawn is a wave survival FPS featuring complex maps packed with secrets, dynamic spawns, and hordes of zombies to turn into gory mulch. Plan your defense, stay on the move, and master the maps. Remember: Nowhere is safe, death is assured, how long until you're zombie chow?

A simple single-player high difficulty tactical shooter.

I thought it was a comedy, but it turned out to be a tragedy. If there's a chance to go back in time and change something that would cause lifelong regret, would you fight with all you have? (Including story mode and zombie mode)