Top similar games like Project September:

In Deadline: Aphelion, you play as a mercenary tasked with defending the research facility from the hordes of alien spiders that have been drawn to it. 

Sandbox of destruction. Billion different ways to build your mech. Feel the weight and impact of obliteration in this modern old school mech combat sim.

Pilot a mech to hunt down and destroy the oppressive government of a cyberpunk autocracy. In this fast-paced, top-down shooter, use overwhelming firepower to destroy columns of tanks and level buildings. Unlock up to 56 unique vehicles and 40 weapons.

Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

You are tasked with servicing Terraformer Ai cores. To do this you will have to blast your way through the automated defense system. Turn the bots you come across into slag and get what "res" you can out of them as you will need it to load out your tank with different weapon and mods systems.

Armechgeddon is a chaotic action rogue-lite with a minimalist control scheme. Pick the right mech and pilot for the job, and lay waste to hundreds of enemies with your custom arsenal.

Speculators is a twin-stick mech roguelite. Customize your mech, fight with livestream chat and rhythm-based attacks, navigate six rival corporations, recruit agents, build your squad, and uncover humanity’s fate in a world ruled by AI.

Top-down roguelite shooter where you control a combat robot through relentless waves. Upgrade your weapons and survive in Survival or protect the objectives in Defense across places and arenas.

Armoured Onslaught is a fast paced Top-Down Shooter and Tower Defence hybrid. You will need to make use of both strategy and skill as you fight your way through near endless hordes of deadly foes.

Four centuries ago, 12 billion humans were wiped out by AIs gone rogue. Now, through unbelievable stupidity or desperation, an unknown force may have revived those genocidal machines. As an elite mech pilot sent on a covert investigation, you'll face overwhelming odds — and an unsettling truth.

Pilot disposable combat drones through the Primal Portal in a sci-fi action roguelike. Customize your drone, fight through various missions, recover research data and alien technology to enhance your drone setup for the next session.

Battle through waves of invaders in Zerium War: Destiny, a sci-fi Roguelite RPG. As Earth's core guardian, wield auto-shooting skills to grow stronger. Face random challenges and gear up for each victory.

C6: Frontlines is a bullet hell co-op roguelike where only YOU (and your friends) can bring the Azapall galaxy to peace. Wield 30+ weapons and gadgets of mass destruction to even the playing field, wave after wave, against a seemingly endless onslaught of evil!

A distant world in a dystopian future, separated from her squad Amy Sol finds herself being ambushed by enemy forces looking for revenge. Pilot her nimble hovercraft to blow up as many mechs as possible in this fast-paced arena top-down shooter.

Code of Shadows is a fast-paced roguelite where you don't just deploy drones, you command them. Switch modes mid-fight, fuse drones into stronger ones, and cut through rift-spawned hordes across collapsing dimensions.

A fast-paced ARPG / roguelike hybrid with lasers, alien bugs, WASD / twin-stick controls, random loot, and procedurally-generated levels. Wield legendary weapons, unlock devastating skills, create overpowered builds – and turn your enemies' attacks against them. Try the free demo!

ARMORED CAVALRY:METALLINE Is a multiplayer action shooting arena game.With Top-down view,and double joystick. Control of dozens of tons of heavy mech. Use weapons and tactics, cooperate with your teammates,and defeat the enemy.

Retro-style sci-fi top-down shooter and strategy game.

Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.

Sixty basic cores, hundreds of base station equipment, and thousands of chips, you can freely cooperate and shoot through the dual-angle joystick operation in a survival Roguelike game! Explore the sci-fi space and build your strongest battleship!

Drift, dodge, and draft a build through neon Mars arena runs. Then make your own missions in Sandbox: paint terrain, place enemies, wire objectives and events, tune the rules, and publish Custom maps for other pilots to play.

Enter the arena, where relentless hordes and rival survivors challenge your every move! Fight, evolve, and influence the world around you — but you’re not alone. Other players face the same trials, fighting to outlast the competition. Smash your way to the top in this multiplayer bullet heaven game!

Fight your way through swarms of elite WASP soldiers and bosses using character-specific ranged and melee attacks. Survive by making strategic upgrade choices, using enemy drones to your advantage and overcoming unique stage challenges in the sci-fi survival roguelite, Project XSTING.

Fight, build and engineer your way through five stages to protect a living energy Core. Corebound mixes twin-stick combat with deckbuilding, tower defence and a production network — every card, tower and weapon changes what the other three can do.

Rise up against the Iron Legion. Play as rebel mech pilots and battle giant robots in this twin-stick shooter boss rush game!

Autopanic is a minimalist shooter with rogue-like elements. Also a game about acknowledging player action.

Take over a disfunctional Waste Management Facility on a distant planet. Build incinerators, recyclers, robots, turrets, and more. Battle vicious creatures on the planet's surface with powerful weapons!

Control a fully armed Mech and fight through cyberpunk cities, military bases and industrial ruins. Capture and defend territories, build turrets and structures, and wage war against powerful enemies!

Enter the Arena with your Mythical Gears. Transform into Massive Kaijus and Destroy Everything in your Path! Topdown 2D hack and slash combat with swords, axes, spears, and all, with devastating abilities. Duel rivals in PvP or battle through hordes of Kaiju, Hunt them all, Unlock and Upgrade Gears!

Defend your base on Mars from invaders in Residuum. A thrilling mix of tower defense and shooter gameplay, upgrade weapons and choose your crew for a unique experience each time. Play with a friend for even more excitement!

Survive and destroy monsters to your heart's content with the help of powerful and unique characters. Unlock new characters and discover the synergies with their abilities to unleash game-breaking builds and slay everything on your path.

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

Steel Swarm: SURVIVOR is a fast-paced roguelite survivors game where you obliterate swarms with your drones. Set up formations, upgrade your drones, and overwhelm hordes of metal in each run. Take on enemy waves solo or in multiplayer co-op!

A broke bounty hunter. A sarcastic robot. 1,000,000 credit debt. Star Scrap is a chaotic twin stick space roguelite. Blast through increasingly difficult waves of enemies to pay it off.

Arm a tiny drone past common sense, then shoot absolutely everything. The research facility can reconsider science afterward.