Top similar games like The Rainbow World:

Nelo is the lightning fast, out of this world, genre-blending, bullet-hell, character-action epic meticulously crafted by the loving couple at Magic & Mirrors.

Casual arcade game. Stay on the move and survive for a long time. Dash to dodge, attack, and explode bombs!

SANTICIDE is the sixth volume of the arcade series UBERMOSH. A must buy for arcade and top-down enthusiasts.

Theatre of Doom is an intense and fast top-down action game. Fight your way through the hellish stages against demonic marionette puppets, and ferocious monsters.

Dark Sword is a frenetic action game that mixes bullet-hell and hack-n-slash in the midst of a devastating and dark open world with a tragic backstory, where the player must immerse himself in order to defeat the powerful guardians that guard it.

Vacant Kingdom is a synthesis of bullet hell and story-driven action-RPG. Explore a whimsical yet desolate land and rally its adrift people by solving their problems.

Pilot your swift combat bot through relentless bullet hell arenas and upgrade your lethal robot with parts collected from futuristic dungeons for new ways to kill in this exciting twin stick shooter!

BATTLECASTER is a challenging fast paced arena roguelike. Defend yourself against unrelenting enemies and overcome difficult encounters. Use abilities strategically to control the ring of combat.

Dark Samurai is a roguelike horde survival game with permanent progression, a persistent open world, quests, and online co-op, set in feudal Japan overrun by demons.

The Goblin Lord is a 2D Pixel Art MMORPG that aims to provide fun sharable moments amongst friends.

Marmoreal is a Bullet Hell Action RPG with magical girls, swords and fully automatic crossbows. Join the Mages of the Arcanum and the Warriors of Melkirion in their quest to stop the evil Necromancer!

Sodaman is a bullet-heaven roguelike game that you play as a supersoldier fighting against the alien hoards with his soda powers. Find game breaking sodas and concoct custom cocktails. Unlock new weapons, sodas, cybernetics and more. But first, crack open a cold one.

Collect dozens of playable monsters, upgrade them and unleash their powers in action packed dungeon crawling levels filled with enemies, boss fights and chaotic encounters. Loot artifacts and items on your adventures to customize your monsters to fit your playstyle.

Gather guardians, collect forest spells and items! Defend the forest against ruthless invaders! Upgrade your guardians and forest to defeat them!

Play as a heroic gun wielding knight and explore a world where everything is dice. Money is dice, health is dice, weapons shoot dice and the story is about dice. Before you blast your way through hordes of enemies you must only ask yourself one thing: do you feel lucky?

In this unique game that blends 80s retro aesthetics with modern dynamic gameplay, you will play as a genetically modified super cat with invincible powers, seeking revenge against the mice who once bullied you, and destroying everything in your path!

Stillborn Slayer is a beautifully crafted pixel-art bullet hell action-roguelike game set in a cursed Dark Continent, with challenging boss fights, exploration, and complex combat. Master dodging and rolling skills to fight incomprehensible monsters and slay the Horned God to end the Curse.

In a world where medals have power, players can choose from a variety of jobs, including knight, mage, priest, and archer, to fight monsters and strengthen their characters to their liking. This is an online action shooting game that can be enjoyed alone or with others.

Wreak havoc on countless foes with mighty weapons and deadly spells! Enhance your skills and face even greater dangers! Army of Ruin is an auto-shooter where you become the Bullet Hell.

Sci-fi 3rd person hack n slash with a classic top-down tank shooter component.

Welcome to Slime 3K, an unhinged roguelite bullet-heaven set in the Despot’s Game universe! Build a deck of crazy weapons, grow stronger and devour hordes of pink puny humans as a murderous jelly blob on a warpath of death, violence and pretzels.

Summon the Dark Lord for revenge! This game combines survival and roguelite elements, where you summon monsters and place totems to defeat monsters and take down the Dark Lord!

Play as the cyber-messiah as you bring judgment upon legions of heretics at the Armageddon. Build a deck of powerful abilities, scale up your gameplay with artifacts and create powerful synergies to smite the sinners!

Airships: Lost Flotilla is a steampunk autoshooter where you fight your way through waves of enemies on your way to a safe harbour. Destroy your foes, harvest wreckage, and upgrade your ship.

The Hero of Pixel Spire is a Fantasy, Bullet-Hell, Rogue-Lite with RPG elements. Clear each floor, Master unique spells, and Ascend the ever-changing tower to become 'The Hero'. Don't forget to rest in The Enclave though to: Level up, Upgrade your gear, and Prepare for the formidable bosses within.

This game involves continuously defeating generated enemies to survive. When you defeat enemies, you have a chance to obtain gems, coins, or boxes. Accumulating gems allows you to level up, and upon leveling up, you can randomly acquire weapons or skills.

Bring It On! is a single-player auto-attacking 'monster'-hell shoot-em-up survival game. Take on MASSIVE hordes of monsters across several locations, earning experience points to level up and acquire new weapons and items, and unlocking lots of unique characters!

Big Heavy is a demanding 2D souls-like boss rush. Roll, block, hack, and slash your way to freedom from the clutches of the Sadist King. Only 11 colossal brutes stand in your way. Will you escape with your life or become another victim of the arena?

Pixelmancy is a bullet heaven action-roguelite where you play as a wizard battling demon hordes. Unlock legendary staves and tomes, upgrade your spell and character strength, and survive waves of enemies. Face minibosses, complete events, and grow stronger with every battle!

Embark on an action packed adventure! Elemental Adventure is a fast paced build-oriented ARPG. Featuring 8 distinct classes each with 12 unique skills, all with their own progression trees. Craft powerful gems to further customize endless possible combinations and face the ultimate challenge!