Games like Combat Complex

"Uragun is a single-player Science Fiction Hack and Slash game with stunning visuals. As a Mech unit, you must navigate through a world overrun by corrupted AI, with the goal of finding your missing pilot friend. Levels feature handcrafted design and randomized enemy placement, providing unique challenges in each playthrough, and allowing you to research new skills, mod your Mech and its weapons, and customize your Mech's look."

Demon Hunt is an adrenaline-fueled rogue-lite bullet-heaven game where you battle through vibrant, demon-infested worlds using a wide arsenal of unique, upgradable weapons with diverse evolution paths. Face overwhelming hordes, intense bosses, and dynamic modifiers that keep each run fresh and challenging. Collect powerful items and craft gear to enhance your combat and adapt your playstyle.

Deadly Days: Roadtrip is a 2.5D pixel zombie apocalypse adventure where each journey offers a unique, procedurally generated experience. Players scavenge and strategically pack overpowered weapons and items into a limited backpack space, combining their effects for maximum zombie-slaying power. Progress through stops, discover new characters, and seek legendary combos to conquer the final boss.

"Sentry" is a Science Fiction Shooter game that offers various play options, including single-player, co-op for 2 players, and multi-player. As a member of the SENTRY Defense Program, your mission is to protect your vessel while it flees across space, using an arsenal of weapons, traps, and environmental destruction to fend off alien boarders. If your SENTRY falls in battle, another crew member will be thawed to continue the fight, ensuring that defeat only changes the strategic landscape aboard the ship. The game boasts beautiful gameplay and outstanding visuals.

"10 Miles to Safety" is an isometric action/strategy game where 1-4 players must survive in a limitless procedurally-generated world overrun with infected. During the day, players can loot for weapons and resources, while at night they must construct defenses and avoid more dangerous creatures. As players progress, they'll encounter more powerful enemies and find more advanced weapons, blueprints, and recipes. The ultimate goal is to survive and make it 10 miles to safety.

"SULFUR" is a single-player game that offers splendid gameplay and ingenious visuals. Players must plan ahead, outsmart enemies, and adapt their approach in a world of dark creatures and cunning evil. Experience intense FPS combat with powerful firearms, dynamic enemy AI, and modifications for weapons and gear. Survive the dangers of Sulfur by managing risk, collecting loot, and making strategic decisions with your equipment.

"Killsquad is a fast-paced, co-op Hack and Slash game for up to 4 players with five hero classes to choose from. The game features short, action-packed contracts and a variety of weapons, skills, gears, and talismans to customize your character. However, it has lots of grinding and is known for its bugs."

"Ripout is a Co-Op horror shooter with excellent graphics and mechanics, allowing 2 players to fight through mutant-infested spaceships, collect loot, and customize characters in search of humanity's last bastion. Engage in high variety of reconfigurable monster battles, with a derelict ship exploration in single-player or small teams. The game's phenomenal atmosphere and grinding opportunities ensure hours of entertainment."

"Starward Rogue" is a twin-stick shooter roguelite where you play as a "head in a mech" from the neck of a Space Hydra. Explore evolving catacombs, choose from 9 starting mechs with unique abilities, and encounter 150+ enemies across 500+ rooms. Level up and buy upgrades through the perk system to create varied builds. Play with keyboard+mouse or gamepad.

Deadzone: Rogue is an intense cooperative or solo action game where you battle through a biomechanical spaceship filled with hostile enemies and massive bosses. Customize and upgrade over 30 weapons with elemental effects to match your playstyle. Tackle each mission with adjustable difficulty, coordinating attacks to survive relentless waves of robotic foes.