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
OurClicker
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
From the creators of OurLife and OurCoven, OurClicker is a brand new clicker game that puts you in charge of an up-and-coming Game Development Studio where all you do is... CLICK!
- 2
A Dark Cave
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy with Sphere TD.
Survive in a cruel world, build and expand your village, and descend into the darkness below. Gather resources, make difficult choices, and uncover the unspeakable truth hidden deep within the cave in this dark incremental game.
- 3
Loop Alchemist
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
You wake up in an unknown land. Again. Use the experience from every past life and your ever-growing knowledge of alchemy to extend each life through a robust alchemical system. Explore, break through and uncover all the world has to offer in this minimalist RPG distilled down to its purest form
- 4
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 thrown in the trash. Battle rival sketches in an idle climb for revenge. Every enemy is drawn by community artists, with alternate versions and direct credits. In an unusual twist on builds, choose which enemies appear in your world, then defeat them to absorb their powers.
- 5
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.
- 6
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.
- 7
Autodelve
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
A watch-it-happen roguelike meets a deep incremental. Your challengers dive, fight, and fall on their own — you spend their legacy to make the next generation stronger, and send up to six delving at once. Idle progress worthy of a second monitor.
- 8
Hollowspire
Single-player alternative to Sphere TD — playable solo, no multiplayer required. Shares Strategy and Indie with Sphere TD.
A chill clicker-idle game where you dig, recruit and manage miners, and uncover buried upgrades deep underground.