Games like Puropu Defense Squad

"Fortified is a thrilling strategy shooter set in a 1950s retro sci-fi world, where players defend Earth from a Martian invasion. Combining third-person shooter, real-time strategy, and tower defense mechanics, players can enjoy single-player, co-op, or multiplayer modes, building defenses and wielding an arsenal of Cold War-era weapons. Protect the city against towering attackers and experience an exciting blend of gameplay styles for a unique and immersive adventure."

"Greedland" is a top-down shooter game featuring single-player, local multi-player, and co-op modes for up to 2 players in split-screen. Powered by Unreal Engine 5, the game offers fantastic graphics, intense action, and strategic combat against swarming enemies and epic bosses across three distinct maps. Equipped with a diverse range of weapons and skills, players step into the shoes of a ruthless mercenary, with more features like powerful mechs to come in future updates.

In the open-world setting of Paradize Project, players must survive a zombie apocalypse, either alone or in multiplayer. Clever survivors have discovered a way to control the undead, who can then be used as unstable but helpful allies for defense, building barricades, and fending off other zombies. The game features survival, combat, and strategic elements in a new take on the zombie genre, where players must outsmart and outshoot enemy clans to thrive.

Overkill's The Walking Dead is a four-player co-op horror shooter set in the post-apocalyptic Washington D.C. of The Walking Dead Universe. Each character has unique abilities, skill trees, and story arcs, with a focus on teamwork and strategic gameplay. The game boasts intense action, detailed graphics, and a wonderful soundtrack, but is marred by grinding, optimization issues, and annoying ads.

"ENDLESS™ Dungeon is a roguelite tower defense game set in the award-winning ENDLESS™ Universe. Play solo or with friends, recruit heroes, and upgrade your gear as you navigate through an infested space station. The 'Last Wish' Edition includes exclusive skins, artbook, and soundtrack. Participate in the GAMES2GETHER community for in-game rewards and the chance to influence game content."

"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."

"Breach & Clear: Deadline Rebirth" is a tactical squad-based RPG with strategy defense mechanics. Lead your team of specialized operatives through various missions in a post-apocalyptic, zombie-infested New York City. Utilize a variety of weapons, skills, and equipment to survive and complete your objectives. Experience a deep, immersive story with dynamic side quests and multiple endings.

Breach is a third-person action RPG featuring co-op and single-player modes. The game offers a good story and phenomenal mechanics, allowing you to create your character and choose from various classes for missions across the globe. However, Breach is very grinding and can be quite buggy. Modern and Mythological Earth collide in this unique RPG experience.

FBC: Firebreak is a cooperative first-person shooter where players defend a federal agency headquarters besieged by otherworldly threats. With dynamic crises, customizable guns, and a variety of enemies, the game emphasizes teamwork and strategy in an intense, unpredictable environment. New systems and content keep gameplay fresh and immersive.

"HYPERCHARGE: Unboxed" is a team-based tower defense game where players protect a toy store from waves of enemy robots. Players can unbox and deploy a variety of toy weapons, traps, and defenses to hold off the enemy. Cooperative play with friends is encouraged, as communication and teamwork are key to success. Fight to keep your toy store from being overrun!