Single-player games like Diabolic
Below are 17 single-player Steam games similar to Diabolic, 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 Diabolic page.
Ranked picks
- 1
Ancient Adventure
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Venture forth! Kill the Monsters! Evil has taken over the world. Equip your Weapons of Choice. Journey out into the world to avenge your predecessors. Survive the hordes, seek out to extinguish the source of all Evil, so that one day, your people may finally live in peace.
- 2
Village of Origins
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
RPG storytelling and hack-and-slash action, are joined with a retro point and click play style. Command a diverse array of hosts, and engage in fast-paced combat that rewards skill and strategy instead of grinding.
- 3
Bounty
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Bounty is a fast-paced and brutal top-down action MMORPG set in a post-apocalyptic world populated by humanoid blobs. As a fresh spawn, all you know about the world around you is what was pre-programmed at your creation. It's up to you to find your way (and your meaning) in this strange world.
- 4
Dustward
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Dustward - Survive the post-apocalyptic ruins! Explore the devastated world, fight mutants, build fortifications, and develop your character in the dynamic survival-action Dustward. Play solo or team up with friends (up to 4 players) in co-op mode to face the dangers of the dead world.
- 5
Hakimi's Ocean Drift
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
A survival shooter game set at sea, where players must gather supplies, locate hidden shelters, and build rafts to survive. On the ocean surface, you'll need to fish with a rod, diligently collect drifting supplies with hooks, construct rafts, and grow food to stay alive.
- 6
Xander the Monster Morpher: Universe Breaker
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
A Monster-Catching top-down shooter! Fuse monsters together to create the ultimate team!
- 7
Rum & Gun
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Rum & Gun combines fast-paced shooter action with ARPG loot and character building. Journey across the Indian Ocean, uncover the secrets of the Drunken God, and become a legendary pirate captain. You're not on the Caribbean anymore...
- 8
Lunarium
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Lunarium is an atmospheric fantasy A-RPG. Play as Ave, a light-armored knight, who teams up with Lune, a mysterious Starfarer. Together, they journey to save a dying world, engaging in challenging battles to retrieve the lost glow of the stars and forsaken memories, unveiling cosmic secrets.
- 9
Diablo® IV
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Adventure with Diabolic.
Join the fight for Sanctuary in Diablo® IV, the ultimate action RPG adventure. Experience the critically acclaimed campaign and new seasonal content.
- 10
Risen Kingdom
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie with Diabolic.
Risen Kingdom is a real-time strategy game. Build and fortify your settlements to survive and push back armies of the undead.
- 11
The Expedition
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie with Diabolic.
The Expedition is a turn-based tactical game with an oppressive atmosphere of underground immersion.
- 12
Sky Survivors
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Sky Survivors is an arena shooter roguelite. Choose from a variety of skills, unlock unique characters and weapons. Build «stairway to heaven» — a sky tower, each floor of which gives your character a unique bonus. Create your own overpowered build to survive against hordes of monsters!
- 13
Moonlight Knight
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Moonlight Knight is an action-slasher with RPG elements. Use sword, bow, magic and hook to fight your enemies. Loot gold, upgrade character stats, find unique items and unlock ultimate abilities to make it to the very end!
- 14
Block Tower TD
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie with Diabolic.
Block Tower TD is a roguelike tower defense strategy game with interesting innovations. Build a world out of blocks, choose random upgrades to make every run unique.
- 15
Tiny Battles
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie with Diabolic.
Tiny Battles is a tactical action auto-battler where battles take place automatically in the arena.
- 16
Milky Way TD SURVIVORS AUTOBATTLER RTS
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie with Diabolic.
Milky Way is a unique mix of Tower Defense, RTS, Auto-Battler and Survivors. Build your base, choose random upgrades and use powerful skills to survive against hordes of enemies.
- 17
Block Tower TD 2
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie with Diabolic.
Block Tower TD 2 is a strategic game in the roguelike style with original innovations. Build worlds from blocks, choose random upgrades, each game will be unique.