Top similar games like Null Reference Exception:

Battle against AI enemies in a shooter game! Adjust parameters through customization and strive for victory with your own designed ultimate bullets!

As an OpsRunner you get emulated into dangerous Scertanic City to complete missions and find out the truth about your identity. When not on a mission you can try Hash Bash, a 1v1 mode where you progress through the leagues of different opponents.

A fast-paced TPS & FPS where you control a mech in battle. Customize 12 parts: head, torso, arms, legs, booster, FCS, and 6 weapons. Weapon and frame colors are changeable. Use weapons, jump, boost up, run on walls, do rapid boosts, quick turns, and high boosts.

Aphelion Headhunters is a Third-Person PVE Hero Shooter featuring two unique player characters, each with their own distinct playstyle, abilities and suite of selectable upgrades.

Glide, fly, and blast your way through Haven's facilities to discover the truth while facing friends and foes of your past along the way.

Insula: Bounty Royale is a F2P, fast-paced, PvP arena shooter with some of the most addictive high-octane aerial combat to be found, making for a truly unique gameplay experience.

A fast-paced, third-person arena shooter which focuses on movement and skill-based comabt. Outmaneuver and out-gun enemies to win, with mechanics such as double jumping, evading, grapple hook and jetpacks. No paywalls, no microtransactions, just fun, and it's free!

Traverse 'The Arc' in this beautiful, Cyberpunk-styled action rogue-lite as you attempt to reset an evil rogue AI. Experiment with different weapons and augments as you fight hordes of machines programmed for your annihilation! Collect Nanites & power-up after every run either solo or with friends!

AGRYOS: Recovering Eden is a third-person shooter with elements of a bullet hell where you play as Neziha, an adventurer fighting to recover the Branch of Eden from a failed space colony. Destroy hordes of robots with Neziha’s versatile arm cannon as you blast through this fallen AI-created society.

Tachyonest is a space third-person shooter about going fast and developing your arsenal by stealing weapons from your dead enemies. Imagine if FTL: Faster Than Light was forcibly mashed with Quake, and that's Tachyonest.

Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.

Another bad dream? Another bad memory? Fight against your past, defeat hundreds of robots sent by GEA, the artificial intelligence that stole everything from you and condemn you to your present. Welcome to Geadows, a third person shooter roguelike. Do you accept the challenge?

Break Free is a fast paced third person sci fi shooter game. The creatures that live among us have made the Earth uninhabitable for human life. You are mankind's best hope for survival. Make no mistake, war is coming and you shall die today, then you shall live to fight again tomorrow.

Update Monster is a fast‑paced bot‑testing roguelite: dive into a procedurally rebuilt arena, grab the sector key, and race back before the timer wipes everything. Spend scarce data on speed, armor, and weapons before each run.

EXTERMINATOR is a fast-paced, high-octane action third-person shooter inspired by Armored Core and Vanquish. Destroy hard bosses, obtain their armaments, modify armaments, annihilate hordes of robots, solve puzzles, learn new skills, try different builds, and customize your robot.

Hell Division is a game from the 3rd person, which is a battle of combat drones.

EMPYREAN//YOU is a third-person mecha metroidvania with dynamic, agile combat and a unique lo-fi vector aesthetic. Fight angels, use their ichor to customize your mech, and explore an empty world damned by a true and benevolent God.

The Desolation brings a complete cross-platform co-op looter-shooter experience to PC and mobile devices. Make your impact across endless procedurally generated worlds via cooperative action combat, deep build customization and richly satisfying tactical gameplay.

Authentic Customizable Mech Action Game. Customize the combat mech "V3" and run through the battlefield!

An action RPG shooter where you battle biomechanical monsters, evolve your soldier, and command a powerful companion as you fight to reclaim a planet reborn.

Hype Prototype is a 3D arena third-person shooter in the prototype style. Endless bullets make the game as dynamic as possible. Each level consists of a separate arena, you need to pass it and get into the portal. The game is great for training your aim

You need to beat all enemies at all of game maps. You can raise money, buy upgrades and abilities for yourself. How fast do you walk so fast time.

NEUROXUS is a high-intensity sci-fi action shooter where overwhelming firepower, brutal boss battles, and precise movement decide survival. Awaken as Earth’s last war machine and fight through deadly defenses to destroy Nexis, the AI that wiped out humanity.

Mech Wars is a real-time 6v6 multiplayer game. Build your robot army, customize with powerful weapons, and battle in Assault and Deathmatch modes. Capture enemy bases or destroy rivals using strategic tactics. Earn rewards and become the ultimate mech commander!

Cargo Hunters is a single-player extraction shooter where you control a humanoid robot scavenging the remains of humanity on an abandoned, dystopian Earth. 

Cyber Heart is a single-player, story-driven mech shooter where you, a commander, ride your customizable mech through an open world to fight against enemy AI machines.

This is an action game in which the player builds and controls a giant robot. The game features ground crawling 3D maneuvers, customizable elements, picturesque characters, and scenarios. Even those who have never been good at action games will surely find that Vulture will respond to their needs.

Hordes of robot marauders have been attacking airships en route to the city. Join the SKYGUARD and shoot bots, buy guns, and fly your way to victory (and a paycheck) in this action-packed, couch co-op, third-person shooter.

SCORCHED EARTH is a chunky PS2 mecha-action game with massive amounts of customization, where you play as a mercenary taking on dirty jobs across a planetary war.

A tense 20-minute battle, using firearms and skills to eliminate enemies. Upgrade and select MODs to enhance yourself, complete various battlefield missions to learn skills, and obtain weapon materials. Maintain rapid growth in abilities to survive in the game.

A challenging solo extraction shooter set in a hostile sci-fi world. Play as Quinn, a Dark Matter harvester stranded on planet Viridan — surrounded by deadly robots, fearsome bosses, hostile wildlife, and corporate lies. Harvest. Fight. Escape.

Ultra high-tech fighting robots are humanity’s last defense to repel alien forces who will stop at nothing to wipe our civilization from existence! Blast those aliens back to where they came from in these two action-focused high-flying 3D arcade style rail shooters!

Shoot at enemies in a WEIGHTLESS space station to save yourself from burning alive in the atmosphere!

Join the rebels in a third-person shooter with RPG elements and base-building mode. Fight against various combat drone models under the control of the supreme AI.