Single-player games like F.U.N
Below are 8 single-player Steam games similar to F.U.N, 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 F.U.N page.
Ranked picks
- 1
You Are Circle
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
You are a circle in a sharp world. Fight jagged enemies in a neon twin-stick bullet-hell roguelite, build devastating ability combos, and grow from fragile to unstoppable through shifting neon labyrinths.
- 2
Irradiant Skies
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
Irradiant Skies is an arcade roguelite blending brick-breaking and bullet-parrying combat. Reflect enemy attacks, chain powerful upgrades, and master unique ships as you ascend through waves of enemies.
- 3
SteelGuard
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
Pilot customizable mechs in an epic battle against hordes of enemiesor dive into intense PvP battles where precision aiming can turn the tide, or let your mech's auto-firing system handle the heat of combat. With rogue-lite elements, each run offers a unique challenge and opportunity for growth.
- 4
Underwater DuO
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
In Underwater Duo, control a smashing turtle with your left hand and a blasting jellyfish with your right! Fight off waves of fierce fish, grow stronger, and see if your two hands can conquer the deep… or team up with a perfectly in-sync partner.
- 5
Wild Island
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
You are stranded on a mysterious island, trying to escape. A sandbox where you stack items, craft synergies, and turn simple weapons into pure power. Experiment with runes, accessories, and pets. Discover the island’s mysteries and rebuild your sanctuary to uncover what the island truly wants.
- 6
LOOPFANG
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action with F.U.N.
A snake roguelite where your body is your arsenal. Collect weapon segments, fuse matching neighbors into higher tiers, and reorder them until they react with each other. Then close a loop with your own tail: everything trapped inside dies.
- 7
Sugarena
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
Sugarena is a top-down roguelike arena shooter where you fight off relentless hordes of monsters. Choose from a massive arsenal of weapons, upgrade and ascend them to clear the arena.
- 8
Homesider Survivors
Single-player alternative to F.U.N — playable solo, no multiplayer required. Shares Action and Indie with F.U.N.
HOMESIDER SURVIVORS is a single player survivor-like auto-shooter. You find yourself far from home against countless hordes of aliens...but they're the ones who have to survive, because they kidnapped the wrong guy. Kill, die, level up, and try again until you get home.