Single-player games like Project Redsun
Below are 8 single-player Steam games similar to Project Redsun, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Project Redsun page.
Ranked picks
- 1
Into the Cannon, Cure!
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
Co-op zombie shooter (1–2 players) with thriller elements. Search the factory complex for valuable medical containers and bring them to the roof. Meet survivors, decide their fate, and piece together what really happened at this facility.
- 2
ITERRIA ZONE
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
ITERRIA ZONE - Horde destroying game. First-person Shooter, Survival, Horror
- 3
ROTOSCOPE
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
ROTOSCOPE is a co-operative FPS Roguelite hoard shooter. Progress through randomly generated floors and find cards and weapons to upgrade your kit. Watch out, your enemies are constantly growing in strength
- 4
Hill-Z
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
Zombie wave survival meets King of the hill. Survive, Upgrade, and Protect your flag. Face the unexpected through special rounds, endure the constantly growing horde, and customize your loadout. How many rounds will you survive?
- 5
HIVEROT
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
Hardcore round-based zombie FPS. Fight evolving hordes across five maps, build powerful loadouts, discover secrets, and stand your ground against more than 10 different enemy types that stumble, burn, break, and fly as you cut your way through them.
- 6
Invadead
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
shoot at hordes of zombies using diffrent guns and grenades, epicly decimating them by your pure handsomeness.
- 7
Lythium
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
Take on a task force from the gravestones! Your memories may be lost but the horde still remains. Slash, shoot, punch, and unleash your inner beast on your enemies in this action packed rogue-like FPS.
- 8
Clocking In to Fight a Lich in Another Realm
Single-player alternative to Project Redsun — playable solo, no multiplayer required. Shares Action and Indie with Project Redsun.
It's finally time to start your new job at The Company! Time to clock in and see what's on the other side of The Company's newly developed portal technology. Fight undead, defeat bosses, and prevent the invasion of a lich's undead army.