Single-player games like Casus
Below are 8 single-player Steam games similar to Casus, 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 Casus page.
Ranked picks
- 1

ALAYA: Tale of the Gloomy Dream
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Indie with Casus.
Enter the Great Daqian in a hardcore, tile-based DRPG fusing Eastern cosmic horror with deep strategy. Wield ink as your blade, brave perilous grid-based mazes, and manage your sanity against Void corruption. Forge your path to transcendence and shatter this otherworldly delusion.
- 2

Crypts Of Carith
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Indie with Casus.
Create a party of up to six custom adventurers and descend into the dangerous Crypts of Carith. Explore sewers, forgotten cellars, and ancient tombs, battle deadly creatures, and uncover powerful loot in this classic party-based dungeon crawling RPG built on a familiar D20 system.
- 3

Night Spasm
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Indie with Casus.
Night Spasm is a meta-narrative open-world adventure game that adapts to your real-life philosophies and worldviews. From the characters you befriend to the quests you take, the game tracks and remembers your every move to create an adventure-... you're NOT a part of??
- 4

Space Prison
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Adventure with Casus.
Survive the galaxy's toughest prison and rise to the top of a space gang! Explore, fight, craft, trade and learn convicts' stories to escape the facility. Space Prison is a turn-based tactical survival game with deep strategy and social RPG elements.
- 5

Elminage Gothic
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Adventure with Casus.
From the makers of the world renowned “Wizardry Empire” titles, Starfish SD brings you the latest entry in their popular series of dungeon crawlers. Elminage Gothic, previously only available in Japanese on PlayStation® Portable, now comes to PC offering a classic old school dungeon crawling experience with a dark, gothic twist!
- 6

Swords and Sorcery - Underworld - Definitive Edition
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Indie and Adventure with Casus.
Swords and Sorcery - Underworld is a party-based, first person view role-playing game with turn-based combat and a square grid 3D environment. The art was made by a professional comics illustrator.
- 7

Geneforge 1 - Mutagen
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Indie with Casus.
Unique, truly open-ended fantasy adventure in a strange, new world. Use battle or cunning to change the world, served by your own army of custom-made mutant monsters. Over 80 zones to explore and 50+ hours of gameplay. Multitudes of skills, abilities, factions, treasures, and servants to create.
- 8

Dungeon Drafters
Single-player alternative to Casus — playable solo, no multiplayer required. Shares Strategy and Indie with Casus.
Dungeon Drafters is a mystery dungeon adventure set in a world where magic is cards, and cards are magic. Explore ancient ruins, loot rare cards and employ clever combos to defeat your foes and build the legendary spell deck that could save the world.