Single-player games like Gigantes Ex Machina
Below are 14 single-player Steam games similar to Gigantes Ex Machina, 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 Gigantes Ex Machina page.
Ranked picks
- 1
Iron Grave:Planet 9
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Iron Grave: Planet 9 is a sci-fi mech survivor game. Pilot multiple mechs with unique skills and evolution, slaughter enemies, unlock upgrades. Set on the ninth planet over a century from now, fight alongside your squad and become a hero.
- 2
Steel Knight's ARMIS
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action with Gigantes Ex Machina.
"Steel Knight's ARMIS" is a roguelike robot game. Lead the rebellion through five chapters, fighting against the Imperial Army and Earth Federation. Customize and upgrade your robot to survive the intense battles ahead.
- 3
Demon Hunt
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Battle through demon-infested lands in this fast-paced rogue-lite bullet-heaven. Pick unique weapons with powerful evolutions, and hunt down ancient demons in intense boss fights. Loot, upgrade, and unlock new ways to grow stronger after every hunt!
- 4
AIRANBLADE
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
AIRANBLADE is a 3D vertical progression action game, like the classic shoot 'em up games. Fight against squadrons of enemy aircrafts and gigantic bosses. Enjoy beautiful special effects and lots of explosions and lasers coming from every corner.
- 5
A.V.E.N.A.
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Pilot disposable combat drones through the Primal Portal in a sci-fi action roguelike. Customize your drone, fight through various missions, recover research data and alien technology to enhance your drone setup for the next session.
- 6
Mercenary Battle Company: The Reapers
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Join the race for Ether! Mercenary Battle Company: The Reapers is a fast-paced, roguelite, bullet heaven game in a sci-fi setting. Choose your pilots, customize and upgrade your Mecha Robots, and survive against endless swarms of Xeni. Will you survive long enough?
- 7
Steel Swarm: SURVIVOR
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Steel Swarm: SURVIVOR is a fast-paced roguelite survivors game where you obliterate swarms with your drones. Set up formations, upgrade your drones, and overwhelm hordes of metal in each run. Take on enemy waves solo or in multiplayer co-op!
- 8
Astebreed: Definitive Edition
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Climb into the cockpit of an otherworldly war machine and fly into battle against a horrifying alien race bent on eradicating humanity to preserve their own civilization.
- 9
Vampire Survivors
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
- 10
Warframe
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action with Gigantes Ex Machina.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
- 11
DAEMON X MACHINA
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action with Gigantes Ex Machina.
Pilot your fully customizable Arsenal mech and join your fellow mercenaries in defending humanity from the corrupted machines and gigantic robots in this post-apocalyptic action game!
- 12
Touhou Mystia's Izakaya
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Indie and Simulation with Gigantes Ex Machina.
A brand new pixel art restaurant simulator based on the Touhou Project! Play as Mystia, the owner of a small izakaya. Collect ingredients by day, cater to the customers by night, learn recipes from familiar characters, and become the best izakaya owner in all of Gensokyo!
- 13
Armored
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action and Indie with Gigantes Ex Machina.
It's time for you to prove yourself in the management of armored vehicles. You have to perform many operations from liberating the territory to escorting VIP and battling against enemy armored vehicles.
- 14
Normal SHMUP
Single-player alternative to Gigantes Ex Machina — playable solo, no multiplayer required. Shares Action with Gigantes Ex Machina.
Normal SHMUP is a strange shoot em' up game based around classic gameplay. Fight the enemies and regain control of the world again.