Games like The Secret Pyramid

"Arizona Sunshine" is a VR-exclusive first-person shooter set in a post-apocalyptic southwestern America overrun by zombies. You can survive solo or in co-op multiplayer, navigating through hordes of zombies and searching for other survivors. The game features real-life movements for handling weapons and exploring the environment, providing an immersive and thrilling experience in the zombie apocalypse.

Abyssus is a fast-paced action roguelite that blends single-player and co-op multiplayer, where you and friends explore gorgeous, hand-crafted underwater levels. Harness brine-powered weapons, ancient tech, and divine blessings to survive relentless battles against corrupted foes in a vivid, atmospheric world. Despite its bugs and grinding, the game offers hilarious moments, fantastic gameplay, and high replayability.

"Soulslinger: Envoy of Death" is a single-player Fantasy Shooter game set in the rogue-lite FPS world of Haven. As an Envoy of Death, players can upgrade abilities and weapons to become the ultimate Soulslinger in a war against the afterlife's criminal cartel. Experience a captivating western-fantasy tale of grief, loss, and one man's obsession with cheating death.

The co-op survival FPS and spiritual successor to the award-winning occult horror, Maid of Sker. Play solo or up to 4 players to survive the supernatural onslaught of the Quiet Ones.

"Contagion" is a horror survival game with dynamic gameplay, where each playthrough is unique due to its built-in randomization system. The game features state-of-the-art gore and immersive sound effects, bringing the dark atmosphere of a zombie apocalypse to life. Traditional zombies and various game modes provide an intense and addictive experience.

"Tower Hunter: Erza's Trial" is a 2.5D side-scroller roguelite game with smooth controls and soul-like actions. Erza, the heroine, fights her way up in a giant tower with random modules and different terrains, restarting at the original start each time she dies due to a contract with a demon. Each weapon has its own combo, and the classic order system from Castlevania is featured.

"Monument" is a single-player fantasy shooter game featuring old-school FPS gameplay with huge hordes of monsters and an arsenal of weapons. Each level is unique, offering new challenges and enemies. The game boasts excellent graphics, a stellar soundtrack, and unique features such as a teleport gun and donar station for ammo. It's a fun and exciting game that will keep you engaged with its challenging levels and epic battles.

"Project Warlock II" is a boomer-shooter game that takes you through various dimensions filled with deadly monsters. As a warlock, you have access to a wide range of weapons and spells to aid you in your battles. The game features fast-paced action, puzzle-solving, and exploration, providing an immersive and exhilarating experience.

"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.

"The Last Stand: Aftermath" is a survival-action role-playing game set in a post-apocalyptic world overrun by zombies. The player must scavenge for resources, craft items, and navigate through a dangerous landscape while managing their health and stamina. With a focus on melee combat and strategic decision-making, the game offers a challenging and immersive experience in a grim, post-apocalyptic setting.