Games like room13

"Unloved" is a horror shooter game with fast-paced, old-school gameplay and modern co-op features, allowing 2-4 players to team up in a procedurally generated underground world filled with deadly monsters. The game boasts good graphics, a spectacular soundtrack, and compelling replayability, but can be grindy and buggy. Its atmosphere is masterfully unsettling, with the goal being to survive the nightmarish, ever-changing basement levels.

Rogue Stormers is a run'n'gun game with roguelike elements for up to four players in local and online multiplayer mode. Dying in a mission will allow you to keep earned perks which allow your character to grow stronger with each new raid. You'll delve further and further with each session until you finally defeat the final boss.

"Let Them Come" is a pixel-style survival shooter where you play as mercenary Rock Guner, tasked with eliminating alien hordes on a spaceship. Upgrade and customize your arsenal, utilizing FRENZY mode for maximum damage, as you face an onslaught of diverse enemies and boss creatures. Competitive players can climb online leaderboards and unlock new mixtapes as rewards for their shooter prowess.

"Caveblazers is a fantasy platformer roguelike offering both single-player and local co-op mode for 2 players. The game generates procedurally leveled caves to explore, filled with a vast array of weapons, equipment, and monsters. With smart AI characters, online multiplayer mod, and high replayability, Caveblazers provides delightful game mechanics, outstanding visuals, and a good soundtrack, though it involves plenty of grinding and humor."

"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!

From Space is a solo and co-op action-shooter for squads up to four players. Take on the challenge of liberating the earth from an alien infestation with your friends, using over-the-top weaponry in a post-apocalyptic world with awesomely stylized graphics. The apocalypse has never been so much fun!

"Seraph" is a skill-based, acrobatic combat platformer where players help an angel, Seraph, escape a demon-infested prison while bound to a human vessel. Key features include gun-fu combat, dynamic difficulty scaling, and procedurally generated levels designed for high replayability. Experience pretty visuals, a sensational soundtrack, and some grinding as you craft new weapons, Miracles, and items in your battle against dark magic.

"Ziggurat is a single-player Fantasy Shooter with fast-paced combat, Rogue-lite elements, and RPG features. Explore randomly generated dungeons, defeat bosses, and level up to prove your worth as a sorcerer. With its beautiful graphics, hilarious moments, and high replayability, Ziggurat offers a wonderful atmosphere and a challenging experience for players."

GoNNER is a single-player shooter game with roguelike elements, known for its tough-as-hell gameplay, intriguing story of friendship between Ikk, Death, and a space whale named Sally, and phenomenal mechanics. The Blueberry Edition offers new weapons, heads, enemy types, visuals, and daily challenges, providing a fresh twist to the award-winning original. With a perfect music score and amazing atmosphere, GoNNER will pull you into its unique world and keep you coming back for more.

"Black Future '88" is a fast-paced, rogue-like 2D action shooter set in a dystopian future. Players must fight their way to the top of a procedurally generated tower, defeating enemies and bosses to earn upgrades and abilities. With permadeath and a unique synthwave soundtrack, each run offers a fresh challenge in this adrenaline-pumping adventure.