Single-player games like Starfall Defenders
Below are 16 single-player Steam games similar to Starfall Defenders, 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 Starfall Defenders page.
Ranked picks
- 1

SYNCHRONIZERS: UNDEAD MARINES
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
"SYNCHRONIZERS: UNDEAD MARINES" blends high-quality Three-Lane Tower Defense with Reverse Tower Defense gameplay. Command your units in a thrilling narrative reminiscent of a StarCraft and Plants Vs. Zombies fusion! Your choices will forge the path to victory—or defeat.
- 2

Swarming Planet
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Strategy with Starfall Defenders.
Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.
- 3

The Fall of Aether Station
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
Customize your Ships, Upgrade your fleet, and Command your way to victory in this ruthless rogue-lite tower defense/real time strategy hybrid. Take on an enemy that learns from your moves and adjusts its own path. Do you have what it takes to persevere?
- 4

CARNAGE OFFERING Tower Defense
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
- 5

Aliens: Dark Descent
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
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.
- 6

Infested Planet
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
- 7

IRON GUARD
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
A sci-fi roomscale VR Tower Defense game. Strategize to destroy waves of rogue robots and assist the powerful turrets with a handheld drone. Build and collect resources and help evacuate your crew from the alien planet.
- 8

Line Of Defense Tactics - Tactical Advantage
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
A real-time strategy combat game based on the world of the Line Of Defense. Command a team of four Galactic Command marines in highly classified missions in space and on planets.
- 9

M.A.C.E.
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action with Starfall Defenders.
MACE is a classic space shoot ’em up, inspired by the legendary Amiga games of this genre. Handdrawn 2D graphics in HD resolutions, parallax scrolling, explosion effects and optimized games mechanics, combined with the proven gameplay are transporting the “Spirit of Amiga” in today’s Age.
- 10

M.A.C.E. Tower Defense
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action and Strategy with Starfall Defenders.
M.A.C.E. Tower Defense is a classic tower defense game with unique towers and enemies and an ingame shop system for getting better towers, upgrade existing towers and buy special items.
- 11

Spencer
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action with Starfall Defenders.
Spencer is a classic Jump´n Run with challenging levels and enemies. Find missing items, destroy enemies, collect coins and diamonds. 3D graphics packed in a nice graphics style, great 2.5D levels and proven gameplay gives you hours of fun.
- 12

Super Star Blast
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action with Starfall Defenders.
Super Star Blast is a space based game with challenging levels of increasing difficulty. All enemies must be shot down to finish a level and go to the next one. A scanner around the player tells roughly where the enemies are located.
- 13

Monster Blast
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action with Starfall Defenders.
It´s all about blasting Monsters. On randomly generated maps you are shooting your path to find the exit and move on to the next level.
- 14

Radon Blast
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required. Shares Action with Starfall Defenders.
Radon Blast ist a Brick Breaker / Arkanoid style game, with a touch of Pong.
- 15

Bubble Shooter FX
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required.
A great classic bubble shoot game.
- 16

Pyramid Quest
Single-player alternative to Starfall Defenders — playable solo, no multiplayer required.
Pyramid Quest is an exploration and treasure-hunting game inspired by classic platform games. The goal is to find the three parts of an artefact and open the gate to the next level while collecting diamonds and coins.