Single-player games like Portal Knights
Below are 15 single-player Steam games similar to Portal Knights, 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 Knights page.
Ranked picks
- 1
Creativerse
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
A sandbox adventure game as big as your imagination.
- 2
Core Keeper
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
Explore a vast cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core.
- 3
My Time at Portia
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Adventure and RPG with Portal Knights.
Start a new life in the enchanting town of Portia! Restore your Pa's neglected workshop to its former glory by fulfilling commissions, growing crops, raising animals, and befriending the quirky inhabitants of this charming post-apocalyptic land!
- 4
PixARK
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
Enter a world of mystery, danger, ancient dinosaurs, mythical beasts, and cubes! Work by yourself or with a tribe of others to gather materials, craft useful items, tame wild creatures, and build huge bases to survive in PixARK!
- 5
Forager
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
The highly popular and quirky "idle game that you want to actively keep playing". Explore, craft, gather & manage resources, find secrets and build your base out of nothing! Buy land to explore and expand!
- 6
Starbound
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
You’ve fled your home, only to find yourself lost in space with a damaged ship. Your only option is to beam down to the planet below, repair your ship and set off to explore the universe...
- 7
Craft The World
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares RPG with Portal Knights.
Craft The World is a unique sandbox strategy game, the mix of Dungeon Keeper, Terraria and Dwarf Fortress. Explore a random generated world populated by dangerous creatures, build a dwarf fortress, gather resources, and craft all the items, weapons, and armor you need.
- 8
Terraria
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 9
Grounded
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?
- 10
Valheim
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
A collaborative exploration and survival game for 1-10 players, set in a procedurally generated afterlife inspired by Viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!
- 11
Don't Starve Together
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.
- 12
Hollow Knight
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
Forge your own path in Hollow Knight! An epic action adventure through a vast ruined kingdom of insects and heroes. Explore twisting caverns, battle tainted creatures and befriend bizarre bugs, all in a classic, hand-drawn 2D style.
- 13
DRAGON QUEST BUILDERS
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Action and Adventure with Portal Knights.
The beloved block-building RPG, DRAGON QUEST BUILDERS, is bringing its handy crafting features to Steam! Weave your own tale as you build your own unique buildings and towns to restore Alefgard to it's former glory!
- 14
Subnautica
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Adventure with Portal Knights.
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
- 15
LEGO® Worlds
Single-player alternative to Portal Knights — playable solo, no multiplayer required. Shares Adventure with Portal Knights.
Experience a galaxy of Worlds made entirely from LEGO bricks. EXPLORE gigantic landscapes, DISCOVER countless surprises, and CREATE anything you can imagine by building with LEGO bricks.