Single-player games like Intergalactic Defenders
Below are 8 single-player Steam games similar to Intergalactic 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 Intergalactic Defenders page.
Ranked picks
- 1
REGOLITH: VIOZIC SUNS
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action and Adventure with Intergalactic Defenders.
A top-down space shooter roguelike set in a handcrafted, procedurally-enriched galaxy. Coming soon.
- 2
Project Sundive
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action with Intergalactic Defenders.
Project Sundive is wave-based arena auto-shooter roguelite, focusing on ship customization and ridiculously overpowered builds
- 3
Star Legion
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action and Adventure with Intergalactic Defenders.
Star Legion is a local co-op top-down shooter where you battle rogue machines in intense missions. Craft gear, survive hostile incursions, and reclaim sectors to spread the glory of the intergalactic Roman Empire.
- 4
Entity Strike
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action and Adventure with Intergalactic Defenders.
Entity Strike is a 2D top-down survival game where you face endless hordes of monsters. Choose your upgrades, build powerful loadouts, and survive as long as you can. Fast, intense, and addictive.
- 5
Kuiper Belt Survivor
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action and Early Access with Intergalactic Defenders.
Kuiper belt survivor is an arcade style bullet heaven, where every run is endless. It brings a unique spin to the bullet heaven genre by making every part of the players weapon arsenal customizable with well over 10,000 unique weapons to build, and unique stats for every enemy.
- 6
Space Recall
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action and Adventure with Intergalactic Defenders.
"Space Recall" is a side-scrolling game with action Roguelike structure, skill and equipment combination as innovation points, and economic operation as the driving force. players can build character skills according to the situation, and at the same time with special abilities
- 7
Star Devil
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action and Adventure with Intergalactic Defenders.
Star Devil is a Sci-fi Station Survival Roguelike Game with dynamic alien infection. Playable in both single player and split-screen co-op.
- 8
SUNSET SURVIVAL STATION
Single-player alternative to Intergalactic Defenders — playable solo, no multiplayer required. Shares Action with Intergalactic Defenders.
A survival game in which we upgrade our car and fight hordes of mutants. The game contains roguelike and RPG elements, a deep leveling system for each car, a wide variety of guns and adrenaline-pumping gameplay.