Single-player games like Invaders Tower Defense Online
Below are 7 single-player Steam games similar to Invaders Tower Defense Online, 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 Invaders Tower Defense Online page.
Ranked picks
- 1
Polygons Tower Defense
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy and Early Access with Invaders Tower Defense Online.
Defend this colorful world with a brilliant strategy! Strengthen your battlefield and don't let enemies reach their destination. Make amazing combinations, and choose the most powerful elements wisely!
- 2
Crossfire: Legion
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy with Invaders Tower Defense Online.
Crossfire: Legion is a real time strategy game featuring tactical action in furious battles across a shattered version of the near future. Raise and customize your army to engage in intense online combat and carve your own path as you rise through the ranks. It’s a new generation of warfare.
- 3
Eximius: Seize the Frontline
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy with Invaders Tower Defense Online.
EXIMIUS is a FPS/RTS hybrid that focuses on squad-based combat. The game features an intense 5v5 multiplayer experience with each team comprising of 4 Squad Officers and one Commander.
- 4
Ashes of the Singularity: Escalation
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy with Invaders Tower Defense Online.
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
- 5
9-Bit Armies: A Bit Too Far
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders Tower Defense Online.
Unleash voxel warfare in 9-Bit Armies: A Bit Too Far. Lead a modern military, build bases, unlock units, and attack in all-out war. Engage on land, sea and air in over two dozen missions, online skirmishes, or co-op. Easy to learn, a challenge to master.
- 6
Cossacks 3
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy with Invaders Tower Defense Online.
Cossacks 3 is the return of RTS classics. Obtain resources, build cities and research technologies while taking command of great armies, crushing enemies in grand historical warfares on land and sea!
- 7
Age of Empires IV: Anniversary Edition
Single-player alternative to Invaders Tower Defense Online — playable solo, no multiplayer required. Shares Strategy with Invaders Tower Defense Online.
Celebrating its first year of delighting millions of global players, the award-winning and best-selling strategy franchise continues with Age of Empires IV: Anniversary Edition, putting you at the center of even more epic historical battles that shaped the world.