Single-player games like Diabolic
Below are 16 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
Naval Warfare
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
As Commander of a Naval Super-Destroyer, wage war in a military campaign of epic proportions in, under and above the surface!
- 2
Halls of Torment
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?
- 3
Last Epoch
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Uncover the Past, Reforge the Future. Ascend into one of 15 mastery classes and explore dangerous dungeons, hunt epic loot, craft legendary weapons, and wield the power of over a hundred transformative skill trees. Last Epoch is being developed by a team of passionate Action RPG enthusiasts.
- 4
Slash or Die
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
In this game you will face violence and extraordinary complexity. You will have to become one of three heroes to slash enemies or to die from their hands. What will your hero do? It depends only on your skills…
- 5
Hammerwatch
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
A hack and slash action adventure, set in a fantasy pixel art environment. Play solo or co-op in this adventure from bottom to top of Castle Hammerwatch. Kill hordes of enemies with varied looks and features through four unique environments with traps, hidden secrets and puzzles.
- 6
The Crazy Hyper-Dungeon Chronicles
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Indie and Adventure with Diabolic.
The Hyper‑Dungeon awaits! Explore an evershifting labyrinth where classic dungeon‑crawling meets exhilarating action. Challenge yourself in turn-based combat with a real‑time, arcade‑inspired twist and befriend an eccentric cast of dungeon dwellers on the quest for the legendary Sacred Groowl!
- 7
Larva Mortus
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Larva Mortus is a fast-paced hack and slash top-down shooter. As an agent specializing in exorcism, you are tasked to hunt monsters of the supernatural in a dark, ominous, and randomly generated atmosphere full of undead, terrifying and demonic nightmares.
- 8
Tower 57
Single-player alternative to Diabolic — playable solo, no multiplayer required. Shares Action and Indie with Diabolic.
Tower 57 is a fast-paced neo-retro shooter where cooperation is as important as your ammo capacity. As a member of an extraordinary task force fight your way through a dieselpunk megatower and uncover its hidden 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
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.
- 14
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.
- 15
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.
- 16
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.