Single-player games like Sphere TD
Below are 8 single-player Steam games similar to Sphere TD, 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 Sphere TD page.
Ranked picks
- 1
Factory Time
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
A factory automation incremental game at the end of the universe. Start crafting by hand, automate production, and build the Chronoforge to escape.
- 2
The Board is Yours
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
The Board is Yours is a strategic chess-based incremental game: buy squares, unlock upgrades, and chain synergies through defended pieces. It plays as a demanding idle game where you’ll constantly reposition pieces and optimize your production until the board belongs to you.
- 3
Rejected Draft
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
You are a flawed doodle that was thrown in the trash. Battle rival sketches, absorb their powers, and seek your ultimate revenge. Watch numbers soar in this second-screen idle battler. Massive skill tree and randomized prestige mechanic means every journey is distinct.
- 4
WorldShaper Idle
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
Relax and build your own world! Discover new tiles by experimenting with tile placement. Use their bonuses to optimize your production, or just sit back and become ever more powerful! What will your worlds look like?
- 5
Mining and Dwarves
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy with Sphere TD.
An incremental game where you mine rocks, gather ore, and recruit dwarves. Play actively for maximum gains, or idle and let the dwarves do the work.
- 6
Heroes For Hire - Guild Micromanagement Simulator
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Indie and Early Access with Sphere TD.
You've joined a guild before, right? So, where's the trouble in managing a guild of your own, too? Use the GuildOS system to guide your heroes, raid some dungeons, and grow your guild to rise from the bottom of the ranks right up to the top in Heroes for Hire!
- 7
Incrempire
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
Defend. Upgrade. Dominate. A relaxing incremental base-defense game, packed with powerful skills and a deep skill tree.
- 8
Magic Research 2
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Indie with Sphere TD.
Welcome to Magic Research 2, an incremental RPG from the creator of Magic Research. Learn countless spells, face powerful foes, and command a team of Wizards who can cast spells for you as you journey to find or create the Philosopher's Stone.