Single-player games like Idle Towers
Below are 9 single-player Steam games similar to Idle Towers, 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 Idle Towers page.
Ranked picks
- 1
They Are Billions
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy with Idle Towers.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 2
Taur
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Towers.
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
- 3
Stronghold HD (2012)
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Simulation with Idle Towers.
The original castle sim, Stronghold HD allows you to design, build and destroy historical castles. Engage in medieval warfare against the AI in one of two single player campaigns or online with up to 8 players.
- 4
Mob Factory
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Simulation with Idle Towers.
Mob factory is an tower defense and automation game for the lazy adventurer. Smelt down enemy loot into turrets & factories to automate an ever expanding dungeon from the comfort of your tower.
- 5
IDUN - Frontline Survival
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Towers.
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
- 6
Forts
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Towers.
Unleash your creativity and strategic prowess in Forts, the exhilarating physics-based RTS! Design, construct, and customize imposing fortresses, bristling with devastating firepower, and blast your opponent’s buildings to rubble!
- 7
Grim Nights
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Towers.
Your village must survive for 13 days! Gather resources, expand, explore the underground for riches, and train soldiers to defend against hordes of the undead.
- 8
Tower Factory
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Towers.
Tower Factory is a tower defense and automation game with roguelite elements. Optimize resource production using conveyor systems while defending against monster waves. Can you find and destroy the enemy tower before it's too late?
- 9
Cubidle
Single-player alternative to Idle Towers — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Towers.
An idle clicker game with prestige, perks, interest, evolving system, difficulty tiers, ranking and many other features!