Games like Nation Red

"Yet Another Zombie Defense" is a top-down survival game where players build defenses and fight off hordes of zombies in various waves. Players can team up with others in online co-op mode, gathering resources, and improving their weapons and skills to survive the zombie onslaught. The game offers dynamic maps and various game modes, providing a challenging and engaging experience in this post-apocalyptic world.

"Over 9000 Zombies!" is a frenetic first-person shooter where players must survive waves of zombies in various maps. Utilize a wide range of weapons, from pistols to grenade launchers, to annihilate the undead hordes and progress through the game's challenges. With online co-op mode, team up with friends to exterminate the zombie menace together. Fight for survival and prove your mettle against over 9000 zombies!

Sanctum 2 is a Tower Defense/FPS hybrid game where you protect oxygen-producing Cores from hordes of aliens. Choose from four character classes, customize your loadouts, and utilize elements from multiple gameplay genres to succeed in this intense and strategic game. Build defenses and then jump into the action to take out enemies in the FPS mode.

"Killing Floor 2" is a shooter game with great mechanics, impressive graphics, and a memorable soundtrack. It offers both single-player and multiplayer experiences, including co-op and PvP modes. With frequent updates bringing new content, such as the Polar Distress, Blood & Bonfires, Tidal Terror, Chop 'Til You Drop Xmas, Day of the Zed, and Interstellar Insanity updates, the game is highly replayable and builds a dense, emotional atmosphere, despite some bugs and grinding.

"Dungeon Defenders" is a Historical Role Playing game that combines Tower Defense and Action-RPG elements, where up to 4 players can cooperatively save the land of Etheria from an Ancient Evil, either online or in local split-screen. Customize your character, forge equipment, and collect loot while fighting off enemies and plan strategies with friends. Additionally, PvP Deathmatch is available for competitive play.

"God Mode" is a fast-paced, arcade-style third-person shooter game. Players take on the role of a descendant of ancient Greek gods, battling through hordes of mythological creatures in various locations. With a focus on intense action and upgradeable weapons and abilities, players must fight to reach the top of Mount Olympus and claim their place among the gods. The game features intense combat and cooperative multiplayer for up to four players.

"Killing Floor" is a cooperative survival horror game set in wave-based scenarios. Players fight off hordes of enemies, known as Zeds, using a variety of weapons. The game features a class system, where players can specialize in different roles to better survive the onslaught. As players progress, they can earn money to buy better weapons and equipment for the next wave. The ultimate goal is to survive all waves and defeat the boss Zed.

"Hammerwatch is a Fantasy Hack and Slash game with outstanding graphics, stellar music, and exceptional gameplay. Play solo or with up to four players in local, online, or LAN co-op. Customize your experience with adjustable difficulty, character development, and unlockable skills. With mod and editing support, there's lots of replayability in this action-adventure game."

In Dead Pixels, a toxic waste spill reanimates the dead, and you must fight your way through hordes of zombies to escape the city. The game offers three ways to play, over 100 weapons and items, and a procedurally generated city for a unique experience each time. With single-player and local co-op options, online leaderboards, and 30 achievements, there's plenty of replayability.

Versus Squad is a fast-paced, online multiplayer game. Players join one of two teams and compete in various modes, including deathmatch and capture the flag. With a variety of weapons and characters to choose from, Versus Squad offers a customizable and intense multiplayer experience.