Single-player games like Knights vs Aliens
Below are 8 single-player Steam games similar to Knights vs Aliens, 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 Knights vs Aliens page.
Ranked picks
- 1

Pillar Of War
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Action and Strategy with Knights vs Aliens.
A fast-paced, real-time strategy game inspired by chess, where units follow classic movement rules but fight with health, cooldown-based attacks, and powerful pillar abilities in matches that typically last 1–2 minutes,
- 2

Waveguard
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Strategy with Knights vs Aliens.
A roguelike tower defense where every run reshapes your strategy. Build your team of towers, combine more than 80 artifacts, and explore a pixel-art world while taking on ever tougher challenges and bosses.
- 3

Swarm Queen
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Strategy and Indie with Knights vs Aliens.
A quick-to-learn but challenging real-time strategy game where you spawn an army of space-bugs that control themselves.
- 4

Aliens: Dark Descent
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Action and Strategy with Knights vs Aliens.
Drop into the gripping journey of Aliens: Dark Descent, a squad-based, single-player action game in the iconic Alien franchise. Lead your soldiers in real-time to stop a new and terrifying kind of Xenomorph outbreak on Planet Lethe.
- 5

Circle Empires 2
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Strategy and Indie with Knights vs Aliens.
CIRCLE EMPIRES returns! Expand your empire, circle by circle, in this fast-paced follow-up to the hit RTS. Gather resources, build armies, and defeat bosses (or your friends) in a world that changes with every game. With unique units and biomes, it's an addictive battle of wits and tactics.
- 6

Door Kickers 2: Task Force North
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Action and Strategy with Knights vs Aliens.
Command military Special Ops Teams in gripping tactical combat against a Middle East-based terrorist network. Sequel to RockPaperShotgun's "Best Tactics Game of 2014".
- 7

Sudden Strike 5
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Action and Strategy with Knights vs Aliens.
Sudden Strike 5 delivers real-time tactics in epic WWII battles. A host of tactical options and more than 300 playable units open-up multiple approaches to reach your objectives in a 25 mission campaign on historical battlefields in Europe and North Africa.
- 8

The Mims Beginning
Single-player alternative to Knights vs Aliens — playable solo, no multiplayer required. Shares Strategy and Indie with Knights vs Aliens.
Experience a mystical journey with the Mims in this strategic god-like adventure—build, grow, protect, and wield divine powers. Now it's completely free! Also check out our other story-rich fantasy game, The End of the Sun, where you become a tracker of mythical beings and unravel mysteries.