Top similar games like Slime Mayhem:

Viking Survivors is an action roguelite where you wield ancient weapons and unleash Norse fury on endless waves of monsters. Survive the bullet hell, collect mythic weapons, and prove you're the ultimate Viking warrior in this thrilling survival game.

Spin. Shoot. Survive.

A fast roguelite survival chaos where you destroy endless plague hordes, stack insane upgrades, and break the rules of power.

1000 Seconds is a roguelike – Defeat enemies, gather resources, and upgrade your orb to escape the temporal limbo, but you only have 1000 seconds to reach the end, so be as fast as possible.

Defeat thousands of enemies that are invading Andromeda! Andromeda Survivors is a casual game with rogue-lite elements where you collect skills and upgrades for your ship to create amazing builds!

Space Miner is a shmup with roguelike elements and weapon customization. Destroy asteroids, collect different minerals to improve your ship, and discover new places on the galaxy!

Brew your own weapons from scratch and unleash them on hordes of homunculi! In this survival roguelite, every ingredient combination creates a potion that splashes, moves, and reacts in a unique way. Discover absurd synergies and rescue fellow alchemists in your quest for the Philosopher’s Stone.

A fast-paced, intense top-down bullet hell action experience with a sci-fi aesthetic. As a protector of light, you must build your arsenal of weapons, abilities, reflexes, and wits as you slowly transform into an unstoppable force to survive through waves of monsters and demons from the void.

Fight hordes of Covenant & Flood in this new game mixing Roguelite & Bullet Heaven for hours of mindless fun!

Defend the jungle against The Membrane's vile spawns in this fantasy roguelite survivor. You've signed your life away, now you must fight your way from naked servant to fortified King. Earn wages, craft defenses, and improve your base. Will you survive long enough to slay every putrid boss?

Survive the relentless swarm in this arcade take on the Bullet Heaven/Survivors-like Action Roguelite. Slay 1000s of foes, level up, loot chests and make your character more powerful than ever. Unlock meta-progression upgrades and more heroes, so you can even the odds on future runs.

La Furia de las Trenzas is a survivor-like roguelite where you'll face relentless hordes of British soldiers trying to capture Buenos Aires. Recruit your platoon of soldiers with special abilities and defend the town square! 

Unleash divine fury in this Ancient Greek twist on the Vampire Survivors formula! Play as one of 16 mighty gods, each with unique powers, battle endless waves of mythological creatures and legendary bosses. From harpies to hydras, can you survive?

A free-form arena-shooter Roguelite with heavy emphasis on building an overpowered character! You play as a little shape that shoots other shapes! Strengthen your character by mixing and matching mods and upgrades, and experiment with a limitless rune upgrade system!

Dustbound is a deckbuilding survivors-like roguelite where you build your deck by finding lost treasure. Between waves of monsters take time to upgrade your cards and shape your character’s build—then dive back into the fight.

《Hakimi Blaster》 is a fast-paced roguelike bullet hell shooter. You’ll take on the role of a Hakimi, combining a diverse array of skills to mow down hordes of enemies.

"Duck Dash" is a top-down arena shooter roguelite game. Players take on the role of a little duck and embark on a journey of growth, strategically selecting optimal skill combinations to become a mighty warrior.

Flower Survivors is a hyper-casual action RPG where you team up with beautiful anime-style heroines to survive against endless waves of enemies.

Amass an army of undead to fight endless waves of heroes intent to end your boneraising ways! In this gothic auto-battler rogue-lite Survivor-like, use the bones of slain heroes to raise your minions, collect relics and spells, and unlock meta upgrades, all to survive King Gigald's crusade!

Tails Island is a fast-paced action roguelike where you play as a fearless dog taking on wild waves of savage animal enemies. But he’s not fighting alone. Unlock new playable characters like cats, turtles, and other critters, each with their own unique powers and playstyles!

Face the relentless legions of hell in this fast-paced top-down roguelike. Loot powerful weapons, level up your stats, and survive the bullet hell chaos. How long can you stay alive in the inferno?

Smite demons, collect holy power-ups, and turn Hel into a pixelated fireworks show in this chaotic Survivor game! Play as a ridiculously determined holy knight auto-blasting through hordes of the damned. Simple controls, massive screen-clearing combos, and enough divine fire to make demons cry.

Meme hordes are attacking! Choose one of four heroes and survive 30 minutes in the hellish Bullet Hell Backrooms!

School Fighter is a top-down arena roguelite shooter where you play as a student who fights off school enemies using paper airplanes. You have access to a school shop, unique perks, and an upgrade station to help you create a powerful character and overcome the school nightmare!

A retro arcade style Top down shooting game. Shooting them with a machine gun, blasting them with missiles, dashing them with a vehicle, whipping them with an energy chain, or burning them with a napalm...No matter how you get it done, “ALIEN BUGS MUST DIE!”

Micron Survivor is a survival game with rogue-lite elements where you play as alien microorganisms under the microscope. Evolve, unlock research objectives, find symbiotic weapons, upgrade your builds, and fight hordes of terrestrial organisms to rule the microcosm.

Battle increasingly deadly hordes in an action-packed survivors-like with tower defense elements. Create unique builds, unlock and place towers, upgrade your character, and fight to defend the Kingdom of Stellara.

Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

Defend against the alien invasion and take down the mother ship! Utilise branching upgrade trees, unlock new ships, and equip permanent upgrades to create your own unique build and defeat the growing hordes of invaders in this sci-fi action roguelike!

Irradiant Skies is an arcade roguelite blending brick-breaking and bullet-parrying combat. Reflect enemy attacks, chain powerful upgrades, and master unique ships as you ascend through waves of enemies.

Kill monsters, Gather paws, then you will be stronger and stronger! Purrfect Survivors is a roguelite game, which you need to get runes and arrange them against the thousands of monsters. Every rune has its own ability and it shows completely different ability depending on where you arrange it.