Single-player games like TerraTech Worlds
Below are 14 single-player Steam games similar to TerraTech 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 TerraTech Worlds page.
Ranked picks
- 1

Satisfactory
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Strategy and Indie with TerraTech Worlds.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
- 2

Eden Crafters
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Strategy and Indie with TerraTech Worlds.
Eden Crafters is a solo or co-op open-world survival, crafting, and factory-building game where you transform a hostile planet into a habitable haven for humanity. Build, automate, and terraform. Control the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
- 3

TerraTech
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.
- 4

ASTRONEER
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with TerraTech Worlds.
Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends.
- 5

Palworld
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
Fight, farm, build and work alongside mysterious creatures called "Pals" in this completely new multiplayer, open world survival and crafting game!
- 6

Voidtrain
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
Become a crew member of an Interdimensional Express Train! Discover a new world full of mysterious creatures, enemies and places. Upgrade and customize your train, gather new materials and build better weapons. Play solo or online сo-op with up to 4 people.
- 7

Core Keeper
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
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.
- 8

ICARUS
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Adventure with TerraTech Worlds.
ICARUS is a solo or multiplayer PvE survival game. Explore a savage wilderness in the aftermath of terraforming gone wrong. Complete narrative quests as either Open World operations or Individual Missions. Explore, build, craft and hunt while seeking your fortune and prospecting for exotic matter.
- 9

Space Engineers
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Strategy with TerraTech Worlds.
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
- 10

Scrap Mechanic
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
- 11

Trailmakers
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.
- 12

Sports Hero
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required.
Step into the world of Sports Hero, where the thrill of competition meets retro-style visuals and addictive gameplay.
- 13

Croak Crusader: Spawn of the Spore Spectre
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action and Indie with TerraTech Worlds.
Embark on an odyssey into the unknown! Behold the tale of Toadman, an enigmatic being born from alien tech and the mysteries of Radiant Verde. Witness his perilous quest through treacherous jungles to confront Captain Croak in an epic showdown! Welcome to "Spawn of the Spore Spectre"!
- 14

TerraTech Legion
Single-player alternative to TerraTech Worlds — playable solo, no multiplayer required. Shares Action with TerraTech Worlds.
TerraTech Legion, a chaotic Bullet Heaven Builder. Build the ultimate battle vehicle block by block and survive waves of robotic foes, ramming them at speed and shooting infinite projectiles.