Best Gun Customization Games on Steam
Games focused on modifying firearms, attachments, stats, handling, or loadouts.
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1Noita - Noita is a magical action roguelite set in a world where every pixel is physically simulated. Fight, explore, melt, burn, freeze and evaporate your way through the procedurally generated world using spells you've created yourself.
Oct 15, 2020
In this game, you can…
- swap positions with something you launched so far away it clips out of reality, and end up somewhere it shouldn't exist.
- trigger a chain reaction where electricity detonates a hanging bomb, the blast becomes gas, the gas ignites, and the whole oil pool erupts.
- turn an eldritch monster into a sheep, then teleport it into lava — or just dig a tunnel and ignore it.
- turn a harmless-looking spell into a face-level explosion or a portal to a tentacle realm.
- eat weird fungus, vomit, and watch the vomit transform into lava.
- build a wand that spawns a lava star with its own gravity and melts you instantly.
- kick objects like minecarts into enemies and use the physics as your weapon.
- get turned into a sheep by a pink potion even after you can vaporize mountains and turn ground into gold.
2Brick Rigs - Do whatever you want in a physics sandbox full of chaotic destruction, endless player-made creations and unpredictable adventures. Build, destroy, roleplay and mess around solo or with friends!
Jul 14, 2023
In this game, you can…
- spawn a car, start driving, and get obliterated by a thermonuclear pizza flying past at mach 23.
- spawn a full McDonald's, then hit it at light speed with a flying cigarette box and watch the whole building explode apart.
- crash a nuclear-cargo train off a bridge and turn it into a city-sized wreck.
- build a working tank, invite friends, and blow enemy LEGO tanks into pieces in multiplayer battles.
- snap together custom LEGO vehicles fast in the editor, then drive them and rewatch the wrecks in slow motion.
- download workshop creations like helicopters, planes, APCs, and trains, then throw them into derbies, dogfights, races, and custom maps.
- build vehicles from scratch using steering, suspension, sensors, and logic, then finally get a fully functional machine rolling.
- trigger explosions so huge they can crash a multiplayer server or even your PC.
320 Minutes Till Dawn - 20 Minutes Till Dawn is a survival roguelite where endless hordes of creatures lurk from the dark. Craft an array of overpowering builds and eradicate waves of Lovecraftian nightmares. Will you be able to survive the night?
Jun 8, 2023
In this game, you can…
- stack freeze, burn, and lightning so burn detonations and screen-wide chain reactions start wiping enemies faster than you can track.
- build around emptying your clip, then cut your ammo to one so the on-empty effect triggers every single shot.
- reroll your level-up upgrade options once per level to force a specific build instead of taking whatever appears.
- manually aim and decide exactly when to shoot.
- hold down fire while the gun auto-reloads, forcing a steady loop of firing, repositioning, and surviving the swarm.
- evolve a weapon mid-run until it behaves like a different gun, changing how you play instead of just making numbers go up.
- beat a boss, grab its reward chest, and have that one drop completely reshape your build for the rest of the run.
- lean into summon builds where allies auto-attack while you focus on dodging and positioning, turning the fight into a moving swarm of your own.
4Hot Dogs, Horseshoes & Hand Grenades - Do you like hot dogs? How about horseshoes? Hand grenades? (everyone likes hand grenades) Anyway, we've got all that, and guns. SO MANY GUNS. So if you like ordnance, meat, and far too many groan-worthy puns, this is the VR sandbox game for you.
Jul 4, 2026
In this game, you can…
- manually run a gun so completely you can fire the chambered round after removing the magazine.
- play a Team Fortress-style mode in VR as meaty classes and rocket jump around the map.
- build an AR or AK from modular parts down to triggers, barrels, handguards, and adapters, then mount attachments almost anywhere.
- start a run with almost nothing, crack open a crate, pull an MG42, and suddenly defend capture points through escalating waves.
- explore a ruined amusement park, solve puzzles, tackle extreme horseshoe challenges, fight robot bandits, and uncover a not-kid-safe backstory.
- fight your way through a dark maze with limited ammo, then end up relying on melee against robotic condiment-and-meat enemies.
- clear a two-story house built for close combat, respawn enemies, climb around, and turn the whole place into a grenade-and-SMG disaster zone.
- shoot at targets like armed hotdog soldiers, walking hotdog people, robotic condiments, clay pigeons, and soda cans in user-made scenes.
5MADNESS: Project Nexus - MADNESS: Project Nexus is a third-person Run n' Gun / Beat'Em Up filled with arcade-style action and button-mashing brutality. Gun your way through droves of bad guys in the Story Campaign, or build your perfect killing machine in the neverending onslaught of Arena Mode.
Sep 29, 2021
In this game, you can…
- walk into Arena with absurd loadouts like dual explosive shotguns, a 500‑round minigun, and five shielded bodyguards with SMGs.
- use Playground mode to spawn squads, give everyone custom weapons, and jump in to test how enemies fight each other.
- pick wildly different origins, like a huge brawler who makes enemies explode with punches or a "gangster wizard" who shoots magic.
- throw your empty gun at someone when you run out of ammo.
- switch instantly between shooting, stabbing, blocking, parrying, and fighting bare-handed as the same brawl keeps moving.
- dual-wield weapons, then hurl them hard enough to kill before grabbing something else.
- stun an enemy, trigger a takedown, and watch them get torn in half in a brief freeze of action.
- build an arena character from a disposable grunt into a top-tier killer, then run New Game+ imprints to rebuild them differently.
6Sprocket - Carefully balance mobility, firepower and armour in a dedicated tank designer. Then uncarefully put them to the test in a series of combat scenarios progressing through the ages of the tank. Here, your limit is what you can fit inside your hull and turret while still being able to move forwards.
Aug 26, 2021
In this game, you can…
- design a tank so overarmored that an enemy destroys itself without you firing.
- build a trench-crossing tank with an almost 8-meter hull and a huge front sprocket to crawl over cratered WW1 trenches.
- shape hulls and turrets into almost any form, then bolt on multiple turrets until it stops looking like a tank.
- set up one transmission per track so one side drives forward while the other reverses to spin in place.
- angle armor plates and watch the effective thickness change against incoming shells in the analysis.
- recreate real tanks with matching parts and end up within about 5–10% of their real-world stats.
- place fuel tanks as external components so a hit can get absorbed there, then potentially ignite and cascade into internal damage.
- spawn your custom builds into battles to immediately test mobility, armor, and weird mechanical ideas against other creations.
7Atomicrops - A twin-stick, bullet-hell, roguelite where you must cultivate and defend the last farm in a post-apocalyptic wasteland. Farm mutated crops, upgrade your weapons, marry townsfolk, and kill every mutant creature that tries to invade your homestead! Yee-haw!
Sep 17, 2020
In this game, you can…
- build a run that instantly tills the whole field, fills every empty tile with seeds, and forces crops to sprout immediately for a chain-reaction harvest.
- marry townsfolk like a goth demon girl, a Greek-god puddle, or an anthro rabbit woman, then have your spouse fight and farm alongside you.
- hold your farm through nightly waves of mutant raiders until a season-ending boss and its henchmen crash into your homestead.
- raid four surrounding biomes by day for seeds, gear, tractors, and farm animals, then sprint home before night to turn it into a defended farm.
- spawn combat effects off farm actions, like firing a rocket when you sow a seed or creating a root creature when you harvest.
- grow 2x2 mega crops that turn simple planting into big, run-shaping combo setups.
- unlock and raise huge numbers of Atomicats, keep them permanently roaming your homestead, and pet them whenever you want.
- take harvested money into town after a good day, buy one weapon or upgrade, and have it completely redirect how the whole run plays out.
8Intravenous 2 - Intravenous 2 is the ultimate blend of tactical gameplay and immersive storytelling. Will you embrace the shadows or confront your foes head-on? The choice is yours. Experience a new era of tactical stealth action. Save lives. Uncover secrets. Take vengeance.
Aug 15, 2024
In this game, you can…
- make your own missions by drag-and-drop, then buy and customize guns inside those user-made levels.
- lure a security team into a bathroom, cut the lights at the breaker, block the door, and pick them off in the dark.
- start fires with molotovs or a flare gun, then watch flames spread across rooms and force you to reroute mid-fight.
- black out whole sections by killing the power and moving under night vision.
- walk openly in public areas as long as you don't carry big weapons.
- build weapons by swapping barrels, triggers, ammo types, suppressors, and fire modes, then feel the noise and handling change.
- trip AI into a full-map manhunt where they radio, pair up, and clear rooms until they're sure you're gone.
- bash a door into someone's face to stun them, then break the door apart with gunfire to open the route.
9Pistol Whip - Enter: the ultimate action hero. Pistol Whip is a physical action-rhythm game where film-inspired gunplay and blood-pumping beats collide. Blast, duck and dodge your way through fever dream Scenes, build unique rhythms in a ballet of bullets and claim glory on the leaderboards. Includes mod support!
Nov 7, 2019
In this game, you can…
- fly through a level as bullets crawl past your face, dodging shots and firing back at the enemies who shot first.
- shoot on the beat for score, timing trigger pulls to the song so accuracy and rhythm both decide your run.
- pistol-whip enemies up close for a high-value kill that can restore your shield if you risk letting them get near.
- twist, crouch, and squat nonstop to survive, because shots only count if they hit your head or face.
- dual-wield pistols, switching between single-gun runs and two-gun chaos depending on how you want to play.
- turn off auto-aim and force yourself to land every hit manually, turning the same scenes into a harsher precision challenge.
- step and weave around pillars and low overhangs while dodging bullets, in tight on-rails scenes that make you clear real space.
- play custom levels and remixes with community songs, constantly swapping in stranger, harder, or more personal setups.
- chase daily challenges and leaderboards, replaying the same track as a score attack until you beat your own best.
10Windowkill - Windowkill is a twin-stick shooter, but the game window itself is constantly closing in on you. Shoot the window edges to push it around your screen as you fight and dodge enemies and bosses in their own windows.
Feb 23, 2024
In this game, you can…
- click a boss's X to kill it after it pins your window shut.
- fight bosses in their own separate windows, with bullets crossing the gap between them.
- earn perks that add a permanent new window, or turn a movable window into a damaging zone.
- shoot the window borders to keep the play area from closing in.
- damage a boss only by overlapping your window on top of its window.
- open a shop as a separate window mid-run and keep fighting while you buy upgrades.
- move the game window around your desktop to make room to dodge enemies spawning beyond your view.
- find secret bosses and secret achievements tied to weird desktop conditions.
