Top similar games like Millennium Slumber:

Nightsteel Survivors is a 2D shooter with "roguelite" elements set in a dangerous robot-filled laboratory. Choose from various characters with unique abilities and face challenging bosses. Upgrade your skills and equipment to survive and escape the Nightsteel labyrinth.

Comet Force is a Space Arena Shooter Action Roguelite. Build your camp, recruit to compose and grow your troop, collect upgrades and unique effects, fight enemies and bosses, and choose how the threat evolves. Keep your troop strong enough to survive all waves and close off the anomaly.

Forage, craft, fight, form clans, and expand your settlements in a dynamic, ever-changing ecosystem. Keziah’s Realm offers a unique gaming experience where you must survive in a rich, procedurally generated world, alongside intelligent NPCs who possess abilities equal to those of the player.

The AUTOMATION bullet heaven! Build your custom spellcasting factory and tear through endless waves of monsters. Unlock 20+ characters and 100+ golden totems to craft broken roguelite synergies and survive the swarm! Build, automate, autocast, OBLITERATE!

In this 4-player co-op survival craft game, you and your friends are trapped inside a cursed, ever-changing board game. As members of the Mystery Club, you must uncover the secrets of Cryptfall, craft powerful tools, and defeat terrifying Cryptids to escape—before the island consumes you!

A top-down 2D survival shooter with base building and crafting. Explore procedurally generated islands, secure resources, and defend—or raid—player bases in tense online PvP. Every run reshapes routes, chokepoints, and risk.

Shattered Sun is a fast-paced action roguelike where you pilot a powerful mech across a doomed solar system, fighting hostile factions on dangerous planets to escape the clutches of a dying star.

Explore, mine, and fight your way through the galaxy in this 2D space mining adventure! Unearth the relics of ancient civilizations and face the horrors that linger beneath alien worlds.

Build your ship, escape the swarm, survive for as long as you can. When you are finally defeated, upgrade your technologies to survive longer next time. Escape from Zeta Aurigae is a sci-fi ship builder with rich meta progression.

The space dungeon where every move drains your battery. Scrap against aliens to regain it. Survive station to station and make the escape.

Star Devil is a Sci-fi Station Survival Roguelike Game with dynamic alien infection. Playable in both single player and split-screen co-op.

Take over your grandma's company Dash Bang Rift LLC in this high-stakes action roguelite/roguelike where you out-math the apocalypse. Experiment with volatile Rift Mod stacks to transform standard weapons into god-tier destruction before the rift overwhelms you. Finish your shift—or die trying.

A survival roguelike where a frog digs through freezing snow, uncovers treasures, unlocks upgrades, and battles mystical creatures. Find the escape door — or defeat the final boss to survive.

Cards and Guns is a top-down arena shooter roguelite, where you’ll have to defeat hordes of creatures. Choose from a variety of cards and upgrades to create unique builds and survive to the end.

Swarmhunters is a top-down arena action shooter. The war between human and bugs has become worse - Project Swarmhunters emerged at this situation. You play as the best space soldiers in the galaxy and your mission is to strike the hive and hunt down the Emperor, supreme commander of bugs.

Can you survive the Empire's onslaught? Avoid the attacking enemies and upgrade your ship to last long enough to escape in this space survivorslike.

Berserker Penguin is a twin-stick action roguelike. Master destructible terrain, manual aiming, and parries to survive waves of overwhelming swarms.

Escape From The Island is a 2D, pixel-art survival game in which, as a castaway on a dangerous, uninhabited island, you collect supplies, build a shelter and fight for survival while discovering the secrets of this island.

Save the underworld occupied by robots with your own hands.

Nitroverse is a mix of a Rogue Like and a Bullet Hell with persistent level progression and combinable weapons.

A physics-driven sci-fi destruction roguelite. Orbit hostile worlds, unleash devastating weapons, and carve real craters into fully simulated planets while escalating planetary defenses fight back.

A tactical extraction roguelike where every raid is a high-risk decision. Infiltrate hostile sectors, evade adaptive security, secure valuable tech, and extract before lockdown hits. Push deeper for bigger rewards, or escape before everything collapses.

In "Steel Circuit" You control a resilient robot on a mission to overthrow a malevolent rogue AI. Craft potent weaponry, battle enemy robots, and explore the facility to reclaim it for unseen benefactors. Beware, death comes at a high price!

Cannibal Crossing is an action-survival game where you explore the randomly generated town of Earlsboro while scavenging, fighting hordes of enemies, building a base, and searching for a way to escape! Meet survivors with new abilities and lots of cannibals. Includes a co-op mode for 1-4 players!

CYBRID: Survivor - is a single-player shooter with survival elements. Use your entire arsenal, fight hordes of robots, mine resources and unlock powerful upgrades as you clean up the streets at night. You are alone, against everyone!

To save your world, take out an expanding horde of monsters. To develop one-of-a-kind and game-breaking builds, select from a selection of upgrades. Unlock a wide variety of characters and weapons with special abilities.

BALL x PIT is a brick-breaking, ball-fusing, base-building survival roguelite. Batter hordes of enemies with ricocheting balls and gather the riches of the pit to expand your homestead, generate resources and recruit unique heroes.

Stickman's Arena is a top-down arena shooter roguelite where you play a stickman wielding up to 6 weapons at a time to fight off hordes of enemies. Choose from a variety of upgrades and combine your weapons to create unique and game-breaking builds.

Global Agent is a top-down roguelite action game in which you explore and save a world plunged into chaos by a mysterious plague. Step into the role of one of several agents, each of whom develops their own unique special abilities. Fight, plan your journey, and overcome the epidemic.

Fight your way through an endless tower packed with monsters and treasures. Every run is a new chance to survive, adapt, and reach the 33rd floor.

Fast-paced roguelike where you mine and explore procedurally-generated asteroids. Collect unique stackable upgrades to aid you in your quest for riches! (and freedom...)

Dungeon Core is a roguelite top-down shooter where you get to explore the sewers and beyond to ultimately reach an old underground research facility. Old nuclear waste has caused dangerous mutations in creatures due to a failed experiment. You set out to destroy the abandoned nuclear core.