Single-player games like Star TD
Below are 11 single-player Steam games similar to Star 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 Star TD page.
Ranked picks
- 1
Null and Void
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Null and Void is a darkly satirical blend of roguelike, deckbuilding and tower-defence genres. Set in a retrofuturist scifi future, this is a game about doing a terrible job, very well.
- 2
Void Guard Outpost
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Build towers, shape enemy paths, and defend your outpost from endless waves. Survive escalating threats, destroy falling asteroid hazards, and push your defenses to their limits in Endless Mode.
- 3
Defendron TD
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Defendron is an epic, action-packed, cyberpunk/futuristic themed Tower Defense with unique twist on upgrade paths. Place towers, mount modules, fend off huge enemy waves and defend the city of Defendron!
- 4
Skyward Bastion
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Skyward Bastion is a roguelite tower defense game set on floating islands. Build and upgrade your defenses, unlock new strategic possibilities, and adapt your run to procedurally expanding maps.
- 5
WilderDash
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
A tower defense roguelite where every run deals you a different hand. Build towers, upgrade your hero with random card draws, and hold the line against waves of monsters. Play solo or in online co-op with friends.
- 6
Ironfront Express
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Upgrade your engine’s arsenal in this bullet hell, tower defense roguelite featuring the most heavily armored locomotive in existence. Engineer and command the Ironfront Express in a unique take on lane defense where you upgrade with specialized turrets, drones, and tactical abilities.
- 7
DRONES
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
A run-based, autobattling, deckfighter. The deck you build is the enemy you fight. Choose the enemies you want to engage, discard the ones you don't. Unlock and guide autonomous drones, and acquire components, munitions, hacks, and modulators to stop planetary invasions in daily seeded runs.
- 8
Astro Company
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Defend your Core in an endless tower defense where every decision matters. Build too slow and you’re overrun. Build too fast and chaos breaks your defenses.
- 9
Starsim
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
StarSim is a spaceship strategy RPG with live galaxy simulation. The game combines real-time with paused starship combat, turn-based crew combat, text quests and more. Be a hero, a trader, a scavenger, a mercenary or a pirate.
- 10
Discard
Single-player alternative to Star TD — playable solo, no multiplayer required.
Discard - it is a sci-fi puzzle 2D-platformer inspired by old-school cinematic platformers. You must solve problems in order to survive on this dangerous planet.
- 11
Stack the Spells
Single-player alternative to Star TD — playable solo, no multiplayer required. Shares Strategy with Star TD.
Stack the Spells is a fantasy roguelike deckbuilder where every card is a step toward your survival. Scale a shifting, procedurally generated path, outsmart grim monstrosities in tactical turn-based combat, and forge a legendary deck to solve the mysteries of a world in ruin.