Top similar games like Under Siege:

Locate and descend into the pit and tear through endless waves of demons with three weapons at once! Rip open card packs, stack powerful items, and build overpowered loadouts as you fight deeper into the horde! Something ancient waits at the bottom...

Spin the slot machine. If luck is on your side, your power explodes. Level up fast, collect items, and build your loadout. Hunt down “Spawners” that endlessly create monsters, survive the bullet hell, and clear stages. Overwhelm enemies with insane growth driven by luck and choice.

Save The World! Bullet-heaven roguelite where absurd founder archetypes defeat world problems through hunger, healthcare, and energy crises. Draft ridiculous weapons, evolve chaotic synergies, and save the world!

Glyphforge is an magic roguelike with "anime style" spell-crafting. You write and compile nested spell formulas while kiting hostiles across an endless grid. In the most "I cant believe its another X type game" manner possible.

Gather items and kill endless waves of enemies! Level-up, unlock characters with different abilities, powerups, items and locations!

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!

You are military volunteer. what? you did not volunteer? It's too late! You are already in the middle of the battlefield. kill the alien for the humanity! Marine Survivors is simple action rogue lite game. kill aliens, earn exp gem, upgrade your weapon. unlock various collection.

BULGASARI is a multitasking action roguelike where combat and inventory management happen at the same time. Devour scrap to grow stronger, create your own build, and survive against endless alien hordes.

You've escaped from the galaxy's most secure space prison, and now there's a bunch of angry lawless chasing you. You must survive, fight for your freedom, and outrun these grumpy pursuers. Asterobits delivers a relentless (and slightly absurd) escape in an arcade-style roguelike space shooter.

Magic is Art. Draw arcane sigils & combine powerful upgrades to dominate an endless Tide. Meet other mages and unlock their abilities. Discover the secrets hidden inside the Magus Mansion. Raise your familiars & enjoy some tea.

Whiskers In The Sand is a fast-paced survivors-like arena roguelite where battle-ready cats shred through hordes of undead desert monsters. Unlock new cats, collect relics, stack upgrades, and forge ridiculous builds to survive the pharaoh's second reign.

A time-limited survival game infused with rogue-lite elements and an adorable art style! The world has plunged into darkness, and you are its sole beacon of hope. Will you endure until dawn, or succumb to repeated deaths in your quest? Fear not, for you can collect more coins to arm yourself!

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! 

In Nine Lives Ninja: Survive you are a cat (who also happens to be a ninja) forced to fight for your lives against hordes of evil woodland creatures. Choose which abilities to focus on, which attributes to increase, and see if you can survive to fight another day.

Hordes of monsters are threatening the Poly Village! Raise your weapons, choose your equipments and enjoy the battles……But be aware of those powerful monsters! Make full use of the environment and collect items continuously. Keep getting stronger until finally you defeat your enemies.

Control a rusted mech in a fast-paced top-down survival action game. Enter unknown areas, dodge enemy swarms, choose random weapons, skill upgrades, and passive modules, defeat bosses, unlock maps, and break through on the edge of overload.

Survive relentless waves of assassins in this top-down action game - dodge, fight, and level up your vampire powers.

Deep Down Dinos is a 2D top-down shooting roguelite where players explore unknown depths shrouded in darkness. On a narrow, confined exploration lift, players must fend off waves of enemies while venturing as deep as possible.

Downcave is a Roguelite 2D Platformer. Descend as far as you can down various caves, encounter more enemies the deeper you go. Gain power from various artifacts and use your weapons to fight hordes of monsters.

Schematica is an action roguelike where every block has a function. Walls are walls. Bombs are bombs. Hearts are hearts. Enemies are made of them. The world is made of them. You and your bullet are made of them. Shoot your way through the world, collect new blocks and craft the perfect build.

King Charles is a fast-paced survival arena game where you dodge endless enemy swarms, level up with card upgrades, and build unstoppable weapon combos—while miniboss waves arrive every 3 minutes for massive rewards.

Go on a campaign to dethrone the kaiser! Build an army, strengthen yourself with powerful artefacts and defeat the forces he sends to stop you. Kaiser is a casual roguelike game where you fight thousands of enemies in an attempt to become the new kaiser.

Unleash Mass Insect Extermination! Entomophobia is a casual Bullet Heaven with rogue-lite elements. Slay bugs, amass upgrades, and escalate your power against the swarms. Crush, upgrade, dominate – the insect reign ends with you!

Immerse yourself in Arcane Chaos, the ultimate magic-fueled roguelike. Mastering chaotic spells to vanquish endless waves of foes. Level up, enhance your powers, and experiment with fusing spells to unlock a myriad of potent combinations. Can you navigate the relentless chaos and emerge victorious?

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!

Unleash feline mayhem in this 3D survivor-like! Control adorable kittens with unique ultimate abilities and survive waves of enemies. With a limited inventory of only 3 weapons and 3 passive items, your strategy is everything.

Drone Arena is a TPS arena shooter roguelite where you control a Drone wielding weapons at a time to fight off hordes of mechas. Choose from a variety of power-ups and items to create unique builds and survive to the top of the arenas. No checkpoints. Kill, die, learn, repeat.

Duriano is a top-down arena roguelite game where the player will be a hero durian of the Norse wielding a weapon to fight upon a god of Norse mythology. From different weapons, Durian hero, God’s trail, items will lead the player to create a build and defeat the giant of fire.

Fight the underground creatures of Argion to free the land from a curse. You have to fight your way through several dungeons full of dangerous creatures and bosses. Try to utilise, level up and combine many different weapons and passive items to stand a chance of defeating them all.

"Fight off endless hordes of enemies with your ship! Upgrade it to defeat increasingly powerful opponents! Choose your upgrades carefully, manage your priorities, and find your enemies' weak points!"

Re:Blade is a cursor-driven incremental action roguelike where every run reshapes your blade and every boss falls to your steps.

Nine Skies is a mythology-themed arena shooter with light roguelike elements. Play as a deity, wield auto-attacking weapons, and cleave through relentless enemies in a fast-paced, chaos-fueled battlefield.

Form a squad of elemental creatures and face hordes of challenging enemies! Choose your Shards according to their synergies to gain new abilities, and equip relics that will make the winds blow in your favor! Survive through different environments and save your lands!