Top similar games like Blue Sun Saga:

Regulators is a tactical top-down shooter where you lead a team of mercenaries to clear the city from mutating villains using your weapons, gadgets, special super powers and intelligence.

Space Waver is an action-adventure-shooter space game, with a strong bind to comics. Become a space mercenary and experience his life through multiple contracts.

Jetboy is a retro supercharged jetpacking pixel shooter with a pumping metal soundtrack.

Get aboard the Ghost Train and fight with 99 lives worth of hardship to forge your own destiny with the unnatural grasp of KalshwK Desert : Top-Down 2d Roguelite Shooter

Step into the boots of a forgotten space legend. In this retro top-down shooter, stop a galactic villain from corrupting ancient wisdom into ultimate power. Correct your past mistake, rescue the Keepers, and rewrite destiny.

Alpha Force Zero is an intense top-down bullet-hell adventure that requires skill and planning. Utilize multiple weapon systems including an Auto-Turret with adjustable firing modes and unlock upgrades that you can equip in your ship to give you the upper hand. Dodge, fight, survive!

A neon-noir action-adventure where you race through rain-soaked streets, merge high-octane motorcycle combat with interactive detective work, and unravel a deadly corporate conspiracy

Engage in an intense space shooter that you can play in single-player or multiplayer with up to 6 players. Play a variety of different spaceships, each with their own unique stats, components, and playstyles!

In this unique top-down shooter with text adventure elements from the 1980s, take on the role of a time traveller seeking wealth and adventure across a number of different eras of time. Play with 1 or 2 players. Players can choose to work together, or against each other!

The patrons of Jonny's Room weep for their loss, it is up to you to dab their tears! Click-and-shoot through combat and puzzles to test your heroic spirit.

In this unique top-down game from 1985, you are a mother cat whose twelve young kittens have wandered off into a labarinthine town prowled by fearsome dogs. Can you save them all?

The machine island was supposed to be a technological utopia on the bleeding edge of technology. Now it's a slaughterhouse. You are the only thing standing between rampaging AI and the rest of humanity. Fight for a chance to survive in a top-down classical shooter and defy the machine!

You enter the DUNGEON and try to get as far as possible.

"Epsilon Zero" is a fast-paced top-down action roguelike shooter where every mission is an all-out assault. Use devastating weapon combinations, unlock powerful upgrades, adapt your tactics, and exterminate everything standing in your way.

Fight through relentless waves of zombies in this action-packed top-down shooter! Collect weapon parts, craft insane custom guns, and unleash devastating synergies to survive as long as you can.

Defend Spacebase 19 from the asteroids swarming down on the station! Shoot down waves of stones and equip different powerful weapons. How many waves can you last? A simple nostalgic retro arcade turret defense shooter.

Zolg is a minimalist top-down shooter where you explore, fight enemies, collect powerups, and defeat bosses.

Riding an extra-terrestrial weapon disguised as a guitar, battle to the bottom of the ocean deep to turn the tides of impending worldly destruction; krill or be killed!

Play as a super skilled combatant, with superhuman speed and agility. Fight against merciless demons, while dashing and jumping to dodge evil traps through carefully designed levels.

In this unique top-down shooter, originally released in 1987, take on the role of a lone pilot of a scout ship fighting to eliminate the threat of the Macro-Genetic-Mutoids, bio-engineered organisms that threaten to destroy mankind.

Ripper is a top-down shooter with fully destructible environments, fog of war, and Steam multiplayer. Break through walls, survive enemy waves, and battle your friends.

Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.

OS OMEGA is an isometric twin-stick shooter / RPG game set in a retro synth wave environment. Fight gazillions of unique 3D enemies, use fully physical guns to defeat the V.I.R.U.S. and save the operating system. Novel tactics reward dancing around enemies and smart consumable management.

Galactic Explorers is a top-down 2D retro space shooter inspired by early games such as Galaxian, and Asteroids.

Face the horde in a world of shifting light and rainy nights. Choose from 4 heroes and 3 weapons to survive 2 deadly maps. Customize your run with 100+ nodes. Play solo or split-screen across 3 difficulties. Start at 6 AM. When the colors fade to gray, the real fight begins.

Cybarian The Time Travelling Warrior is a classically inspired arcade action game, with a mixture of modern and retro gaming tropes.

A top-down shooter where you run and gun down bad guys as the vigilante, Rider. Vastly outnumbered, quickly kill and quickly die as you sweep through multifloored buildings bringing criminals to justice.

Retro pixel-art top-down space shooter. Battle waves of alien invaders across world landmarks, upgrade your ship, collect power-ups, tackle events & missions, defeat epic bosses, and chase high scores.

When the Stars Threw Down Their Spears is a story-rich, retro space shooter inspired by DOS-era space games. Blast your way through fast-paced arcade combat, build out modular, upgradable ships, and explore a galaxy torn by war.

Shoot and drift around the chaotic streets of Strife City, a hub for crime, secret societies, paranormal activities and lots’a *CHA-CHING*!

In this unique top-down shooter, originally released in 1987, take on the role of the plucky little Biopton Nimrod, sent on a dangerous mission to rescue his friends from the 'Matrix' prison planets of the Cratons. Contains both the Amstrad CPC and ZX Spectrum versions of the game.