Single-player games like Cast Out Colony
Below are 11 single-player Steam games similar to Cast Out Colony, 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 Cast Out Colony page.
Ranked picks
- 1
Eldritch Exterminators
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and RPG with Cast Out Colony.
Become a possessed gun in this bullet heaven rogue-lite, mowing down hordes of Eldritch minions with chaotic firepower. Harvest souls, hoard artifacts, and craft insane builds to slay gods and break free.
- 2
Patch Quest
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and Indie with Cast Out Colony.
In a labyrinth surrounded by vicious monsters, Explorers must rely on their Lasso to survive! Capture and tame ANY monster to leap, glide, surf, tunnel and websling through a treacherous, patchwork maze. This roguelike/metroidvania seems cute, but it’s a deceptively difficult bullet-hell challenge!
- 3
Shape Shifter: Formations
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and RPG with Cast Out Colony.
Shape Shifter: Formations is an action twin-stick shooter with rogue-lite elements, where you must destroy hordes of geometric enemies alone or with a friend. Select your ship and combine a large variety of weapons, abilities and infinitely stacking upgrades to craft your own unique build.
- 4
Binding of Elements
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and Indie with Cast Out Colony.
In this action-rougelike game you'll have to survive waves of monsters and fight against bosses. You'll be able to combine different elements to get unique abilities and arm yourself against the challenges. Choose from a variety of upgrades and improve your character or abilities.
- 5
Earl vs. the Mutants
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and RPG with Cast Out Colony.
Save humanity in a mutant-ridden apocalypse! Dive headfirst into Earl vs. the Mutants, a high-octane top-down survival action-roguelite set in the aftermath of a nuclear apocalypse.
- 6
X Invader
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and Strategy with Cast Out Colony.
X Invader is an action roguelite where you hack into big corporations' servers. Use add-ons from fellow hackers to defeat monsters. Powerful, cute bosses guard these servers!
- 7
Towerful Defense: A Rogue TD
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and Strategy with Cast Out Colony.
A roguelike tower defense where you control a single tower to fight against hordes of aliens coming from all directions. Pick your tower, equip up to 4 skills, and choose from a variety of traits and unique effect items to craft powerful builds that lead you to victory.
- 8
Pesticide Not Required
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action with Cast Out Colony.
Mow down countless crops and corrupt critters while crafting game-breaking builds! Pesticide Not Required is an action roguelite bullet heaven game with farming sim elements that offers a myriad of stats and special character traits to create wildly diverse run possibilities.
- 9
Plants vs. Zombies GOTY Edition
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Strategy with Cast Out Colony.
Zombies are invading your home, and the only defense is your arsenal of plants! Armed with an alien nursery-worth of zombie-zapping plants like peashooters and cherry bombs, you'll need to think fast and plant faster to stop dozens of types of zombies dead in their tracks.
- 10
Toaster Defense
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and Strategy with Cast Out Colony.
Smash and shoot down robots in this challenging fast-paced game that mixes tower defense and shoot 'em up platforming. Build lamps, fans, and meat tenderizers to aid in your defenses and find the deadliest combination. Do you have what it takes to defend the world's cutest toaster?!
- 11
Vampire Survivors
Single-player alternative to Cast Out Colony — playable solo, no multiplayer required. Shares Action and Indie with Cast Out Colony.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!