Games like Halo: Spartan Strike

"Halo: Spartan Assault" is a top-down shooter game set in the Halo universe. Players take control of Spartans as they complete various missions, battling against the Covenant and Flood. The game features a campaign mode with over 30 missions, as well as online leaderboards and a variety of weapons and abilities to use. It's a great addition to the Halo series for fans looking for a different perspective on the iconic franchise.

In Red Faction: Armageddon, players return to Mars to fight off alien invaders in a destroyed underground civilization. As Darius Mason, they'll utilize advanced weaponry and the Nano Forge to survive and protect the red planet. The game features both single-player and multiplayer modes, with the latter including infestation mode where players cooperatively fight off hordes of enemies.

Defense Grid 2 is the sequel to the original tower defense game, Defense Grid: The Awakening. It features a new story campaign with 21 maps, dynamic level movement, and an expanded cast of characters. The game also includes challenge mode experiences, multiplayer modes, and a level creation tool set for players to create and share their own levels. The Steam Special Edition comes with additional content.

Dead Effect is a sci-fi FPS game with over 5 hours of single-player campaign, featuring 12 missions and a gripping story. Survive against hordes of zombies in Survive and Biohazard modes, and explore multiple rooms for extra items and ammo. With a unique set of achievements and the special ability of Bullet Time, prepare for an intense and immersive experience.

Shadowgrounds is a Science Fiction Shooter game that offers a thrilling experience with its explosive combat sequences, innovative weapon upgrade system, and intriguing storyline. The game supports single-player mode, as well as 2-player co-op, either on a single computer or multi-player. The game's top-down perspective and audiovisual fireworks add to the excitement, making it a unique entry in the action genre. The single-computer co-op play offers a great feature for players to team up and enjoy the game together.

Defense Grid: The Awakening is a tower defense game where players protect their base by building fortification towers against incoming enemies. With 8 hours of main storyline and many more in challenge modes, each level is highly replayable and can be solved in various ways. The game features 15 different enemy types that increase in strength over time, providing a wide variety of challenges.

Zombie Army 4: Dead War is a horror shooter game that offers both single-player and multiplayer modes, with up to 4 players in co-op. The Deluxe Edition includes the main game, additional character pack with Undead Airman playable character, weapon skin pack in solid gold, a weapon bundle with FG-42 Semi-auto Rifle, and character outfit bundle with Undercover Karl costume. Fight against hordes of zombies in this thrilling game.

In Lara Croft and the Temple of Osiris, Lara Croft and rival tomb raider Carter Bell must work together to defeat the evil god Set. Using a wide range of weapons and artifacts, they explore ancient Egyptian temples and solve puzzles to defeat Set and his minions. This top-down action-adventure game supports four-player co-op, allowing for even more chaotic tomb raiding.

"Renegade Ops is a destructive action-packed game where you fight to stop the madman Inferno from achieving global domination. Play solo or in 4-player online co-op, with a variety of vehicles and special weapons at your disposal. Level up your character, compete for achievements, and aim for the top of online leaderboards."

"RAGE is a post-apocalyptic first-person shooter set in a ravaged world after an asteroid impact. As a survivor of a buried ark, you must navigate the harsh wasteland, combating hostile bandits, mutants, and the oppressive Authority. With id Tech 5 technology, RAGE offers intense action, vehicular combat, and a vast explorable world."