
Slyders
Slyders is a survivor-like, roguelite bullet-hell FPS where you fight overwhelming hordes of enemies and unleash a ridiculous arsenal of upgrades.
If the fast-paced and chaotic rhythm of SKYGUARD stuck with you, this helps. Start with these games when you are ready.
Sky Mercenaries - Fast paced action overdose with rpg elements
Also in Co-op · Fast-paced, Colorful, Tense
A fwooshy rogue-lite flight sim: pick a plane, load it with missiles and bombs, and blow up procedurally generated islands from the deck of a flying aircraft carrier. Fight enemy aces, dodge volleys of missiles, and remember the rule: when you die, you're dead. Bring a friend, because two-player split screen makes the chaos twice as good.
Also in Co-op · Fast-paced, Chaotic, Colorful
Dodge bullets, shoot down televisions and vending machines, take on bosses, and collect over 200 pilots across 20 terrains. Quick runs, silly weapons, one more go.
Fast-paced, Chaotic, Colorful
CounterAttack: Uprising is a side scrolling space shooter (shmup). Team up or fight solo, 1 - 4 player local or up to 8 players online cross-platform coop, unlock upgrades, use powerful ultimate abilities, enhance your ship the way you want, and save the Earth from annihilation.
Also in Co-op · Fast-paced, Chaotic, Colorful
Stardust Galaxy Warriors: Stellar Climax is a fast-paced couch co-op action shooter with SHMUP/Brawler gameplay and RPG elements. Choose your mechs, weapons & upgrades then soar through space, defeat evil & save the future... from itself!
Also in Co-op · Fast-paced, Chaotic, Colorful
Gear up your GunSuit and defend Earth from an alien siege! Equip and upgrade unique arsenals of overpowered weapons to survive overwhelming numbers in this action-roguelite twin-stick horde survival.
Fast-paced, Colorful, Tense
Robots launched an attack on humans! You must stop them! "Cover Sky" is a fast-paced (small map) single-player shooting game that can switch between first and third person perspective at any time. It features fast start, end in fifteen minutes, customizable AI count(20 , 30, 40), dynamic environment, and multiple weapons.
Fast-paced, Chaotic, Colorful
Black Skylands puts you at the helm of an airship in a steampunk world of floating islands. As Eva, a young marshal, you fight invaders in the sky and on the ground, gather resources, craft weapons and upgrade your ship. Pixel art, open skies and secrets in the dark clouds.
Fast-paced, Tense
Sky to Fly: Faster Than Wind is a stunningly beautiful steampunk-themed runner about saving a sky-city from cruel pirates. Play on 20+ different levels, upgrade your ship and discover the mysteries of the malicious marauders.
Fast-paced, Colorful
Sky of Destruction is a top-down shooter created by a team of two people. Combine aircrafts in your combat fleet, which will help you during the mission. Your goal is to destroy the enemy aircraft carrier or buildings, breaking through the enemy air armada. Explosions and total destruction!
Fast-paced, Chaotic, Tense
Slyders is a survivor-like, roguelite bullet-hell FPS where you fight overwhelming hordes of enemies and unleash a ridiculous arsenal of upgrades. You’re Aryx, a fearless fox freedom fighter on his supersonic battle turtle who aims to liberate Sky World from evil.
Fast-paced, Tense, Replayable
Team up as robot cowboy bounty hunters in a weird Wild West of skeletons, haunted mines and a giant ghost train. You mix six-shooters with fireballs, combine spells, grab loot and get out alive. Bright, goofy and best played loud with friends.
Also in Co-op · Fast-paced, Chaotic, Colorful

Slyders is a survivor-like, roguelite bullet-hell FPS where you fight overwhelming hordes of enemies and unleash a ridiculous arsenal of upgrades.

Loot a haunted frontier with your crew, then fight your way to the extraction before the West takes it all back.

Fly an AC-130 gunship, shred waves of enemies with upgrades each run, and bring a friend along in online co-op.

Control a melee mech and its sharpshooting frog rider at the same time in a colorful bullet heaven roguelike.

Take a role on a co-op spaceship, from pilot to gunner, and survive fast, chaotic runs through hostile space together.

Simultaneously control a sword-wielding robot and a gunslinging space frog in Shoulders of Giants, an explosively colourful sci-fi roguelike.

Gear up your GunSuit and defend Earth from an alien siege! Equip and upgrade unique arsenals of overpowered weapons to survive overwhelming numbers…

Polygunners is a cross between a twin-stick shooter and an RPG.

Guardians Frontline is a sci-fi VR shooter that makes you a soldier and a commander.

Captain an airship through steampunk clouds, raid floating islands for resources and build up your arsenal against the invaders.

Sprint and jump through colorful bullet hell as a robot Guardian, stacking wild guns and upgrades across runs that never play out the same way twice.

Team up with up to three friends to purge a virus from a super game and save the last local arcade.

Fly an AC-130 gunship, shred waves of enemies with upgrades each run, and bring a friend along in online co-op.

Fly across floating islands, hold off swarming drones, and face down three colossal bosses.

Loot a haunted frontier with your crew, then fight your way to the extraction before the West takes it all back.

Slyders is a survivor-like, roguelite bullet-hell FPS where you fight overwhelming hordes of enemies and unleash a ridiculous arsenal of upgrades.

Iron Skys is a top down bullet hell shooter with rouge like elements.

Control a melee mech and its sharpshooting frog rider at the same time in a colorful bullet heaven roguelike.

Take a role on a co-op spaceship, from pilot to gunner, and survive fast, chaotic runs through hostile space together.

A fast-paced, action-packed pixel art game, where you have to help a Leviathan to reach space by defending it from an endless robot army.

Simultaneously control a sword-wielding robot and a gunslinging space frog in Shoulders of Giants, an explosively colourful sci-fi roguelike.

Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants…

Clouds Ahoy! is a frantic coop multiplayer game. Alone or with up to four friends you make up the crew of a flying Skyship.

GUARDS! is an online co-op fantasy FPS that puts you in the underfunded and over-zealous steel boots of the City Watch.