Single-player games like Mortal Sin
Below are 16 single-player Steam games similar to Mortal Sin, 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 Mortal Sin page.
Ranked picks
- 1
VOIN
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Crafted by a solo developer, VOIN is a first-person hack-and-slash. Cleave through hordes of enemies in fast-paced combat. Explore dark fantasy realms filled with secrets and dangers. Discover powerful gear and weapons, and face menacing bosses in your quest to cleanse a broken world.
- 2
Darkblade Ascent
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Fast paced First-Person Melee Roguelike RPG with randomly generated weapons and upgrades, unlockable new classes and persistent leveling. Hack and slash your way through atmospheric dark fantasy locations, unique monsters and bosses.
- 3
Death Must Die
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Descend the nether in search of Death himself! Choose from God-given powers to slay his hordes of minions. Unlock new heroes, collect powerful items and create game-breaking synergies in this roguelite hack and slash survivors game.
- 4
Hades II
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Battle beyond the Underworld using dark sorcery to take on the Titan of Time in this bewitching sequel to the award-winning rogue-like dungeon crawler.
- 5
Halls of Torment
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
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?
- 6
Slasher's Keep
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Hack, slash, shoot and loot your way through procedurally generated dungeons! Smack your enemies into spikes with your inventory sack!
- 7
Witchfire
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action with Mortal Sin.
Witchfire is a first-person dark fantasy RPG shooter in which you play as a wicked sinner turned witch hunter on his final mission to reach salvation.
- 8
SULFUR
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
SULFUR is a modern old-school action-adventure: Outsmart enemies, find treasure, improve weapons, harness powers. Delve deeper, find answers, make it end.
- 9
Wolfenstein: The New Order
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action with Mortal Sin.
Wolfenstein®: The New Order reignites the series that created the first-person shooter genre. Wolfenstein offers a deep game narrative packed with action, adventure and first-person combat.
- 10
Warhammer: End Times - Vermintide
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Vermintide is an epic co-operative action combat adventure set in the End Times of the iconic Warhammer Fantasy world.
- 11
DOOM
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action with Mortal Sin.
Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression.
- 12
Dead Cells
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Dead Cells is a roguelite, metroidvania inspired, action-platformer. You'll explore a sprawling, ever-changing castle... assuming you’re able to fight your way past its keepers in 2D souls-lite combat. No checkpoints. Kill, die, learn, repeat.
- 13
Hades
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Defy the god of the dead as you hack and slash out of the Underworld in this rogue-like dungeon crawler from the creators of Bastion, Transistor, and Pyre.
- 14
Post Void
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and Indie with Mortal Sin.
Post Void is a hypnotic scramble of early first-person shooter design that values speed above all else. Keep your head full and reach the end; Kill what you can to see it mend; Get the high score or try again.
- 15
Mortal Kombat 1
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action with Mortal Sin.
Discover a reborn Mortal Kombat™ Universe created by the Fire God Liu Kang. Mortal Kombat™ 1 ushers in a new era of the iconic franchise with a new fighting system, game modes, and fatalities!
- 16
Diablo® IV
Single-player alternative to Mortal Sin — playable solo, no multiplayer required. Shares Action and RPG with Mortal Sin.
Join the fight for Sanctuary in Diablo® IV, the ultimate action RPG adventure. Experience the critically acclaimed campaign and new seasonal content.