Games like Bunker Defense

"Last Hope - Tower Defense" is a zombie-themed tower defense game with over 140 levels and a variety of heroes and towers to choose from. Players must defend against zombies, raiders, and other threats in an open world. Each hero has unique epic gear and skills, and towers have their own research tree to enhance their power. The game features stunning 3D graphics and offers different game modes including a story mode, raiders mode, and arena mode.

Warstone TD is a fantasy tower defense game where players strategically place towers and units to defend against hordes of enemies. With various game modes, heroes, and towers to choose from, each level presents a unique challenge. The game features a compelling story campaign, online PvP, and co-op gameplay, offering a rich and immersive tower defense experience.

"2112TD: Tower Defense Survival" is a futuristic tower defense game with strategic base building elements. Defend your refinery from alien invaders across procedurally generated levels with a variety of turrets and special abilities. Upgrade and customize your arsenal to survive increasingly challenging waves in this intense, sci-fi tower defense experience.

Project Lazarus is a top-down shooter game that takes place in a post-apocalyptic world overrun by zombies. As a member of the Lazarus Project, your mission is to rescue survivors and uncover the truth behind the outbreak. With a variety of weapons and character customization options, players must fight their way through hordes of zombies, completing objectives and battling bosses in intense, action-packed gameplay.

In Siege of Centauri, you assume the role of protector for Earth's first interstellar colony, located in the Proxima Centauri system. Faced with a ruthless alien invasion, you must strategically deploy defense structures and utilize orbital abilities to repel the attackers. With a variety of customization options, adjustable difficulty, and multiple game modes, this real-time strategy game offers an engaging and immersive experience within the Ashes of the Singularity universe.

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.

"Deathtrap is a role-playing Tower Defense game with action-RPG elements, known for its unique mixture of both genres. Play solo or in co-op mode to defend strongholds and defeat hordes of monsters using deadly traps and spells. Despite some optimization issues and bugs, Deathtrap offers a good story, delightful mechanics, wonderful visuals, excellent music, and high replayability."

"Guns n Zombies" is a thrilling post-apocalyptic game where you fight against hordes of robotized zombies infected by a nano-virus. With a variety of weapons, special abilities, and turrets, you'll embark on a dangerous journey through a randomly generated gameplay. The survival mode allows you to challenge yourself and compete with other Steam players, all while experiencing a true post-apocalyptic atmosphere.

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.

"The Riftbreaker" is a base-building survival game where you play as Captain Ashley S. Nowak, an elite scientist/commando in a powerful Mecha-suit. Your mission on the distant planet of Galatea 37 is to build up a base capable of creating a two-way rift back to Earth, using various machines for resource extraction, construction, and combat against hostile inhabitants. This task requires the development of a complex chain of mines, refineries, powerplants, and research facilities.