Single-player games like Portal Worlds
Below are 8 single-player Steam games similar to Portal Worlds, 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 Portal Worlds page.
Ranked picks
- 1
Crazy Oddballs: Idle RPG
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Adventure with Portal Worlds.
Build your oddball team, grind endless loot, and optimize ridiculous gear combinations in a chaotic idle RPG with guild battles, PvP, and long-term progression.
- 2
Pirate Ships
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Strategy and Free To Play with Portal Worlds.
Pirate Ships is a PvP game about shipbuilding and naval battles. Embark on an epic journey together with other players and fight monsters, pirates and thieves to become the greatest pirate in all of the Caribbean!
- 3
Cave Heroes
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Strategy and Adventure with Portal Worlds.
Lead a party of Cave Heroes to explore dungeons, battle monsters and defeat tough archdemons. Build your village, collect loot, rescue pets and much more in this idle RPG.
- 4
Legends of Dragaea: Idle Dungeons
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Adventure and RPG with Portal Worlds.
Legends of Dragaea: Idle Dungeons is a First Person Idle Dungeon Crawler with 6 unique races, robust combat, a grand saga spanning a continent full of unique dungeons, a classless skill system, and extensive guild management system to master as you uncover the secrets of the world of Dragaea!
- 5
Monmusu Girls: Autobattler
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Strategy and RPG with Portal Worlds.
This is a strategic and adventurous idle auto-battler where you'll collect a variety of monmusu girls, form your adventuring team, and challenge the Demon King! Each girl comes with unique skills and bonds, and mastering the right combinations is the key to victory. Embark on a magical journey!
- 6
Evitania Online - Idle RPG
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Adventure with Portal Worlds.
Online Idle RPG with an open world without the grind of classic MMORPGs. Collect rare loot, develop your character, master professions, craft powerful gear, and defeat challenging bosses as you progress endlessly.
- 7
PANOPTYCA : Idle RPG Manager
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares RPG and Free To Play with Portal Worlds.
Discover a new style of RPG management gameplay. Experience the fun of an idle RPG that blends an innovative four-view battle system with a deep hero-growth mechanic.
- 8
Heroes Of The Dark
Single-player alternative to Portal Worlds — playable solo, no multiplayer required. Shares Strategy with Portal Worlds.
Battle Vampires, Werewolves and Humans in a dark Imperial Age strategy game! Collect and upgrade Heroes for 5v5 action, forge alliances, and restore world order.