Top similar games like Outside the Lines:

Dive, destroy and escape. TUNNEL DIVERS is a F2P high octane twin stick shooter, where you pilot a close quarters based spaceship that excels in claustrophobic areas. Play online with or against other pilots, create your own levels in the level editor, and wage war against the rogue AI, Watch Dog.

BATTLECREW™ Space Pirates is a fast-paced competitive multiplayer shooter. Choose your hero, call a few friends and join in on the fun! Meet in battle in this 2vs2 to 4vs4 action platformer.

Games of Glory is a top-down action team shooter set in a science fiction universe. Fight alongside your friends to earn fame and fortune in the epic intergalactic arenas of the Synarchy!

Classic arcade shooter vibes meet modern multiplayer action! Craft unique spaceships with powerful abilities and weapons. Join fast-paced online PvP battles with random players, or with friends – all for FREE!

Frantic Dimension is a retro twin-stick shooter inspired by the earliest twin-sticks, 'Space Dungeon' and 'Robotron 2084'. Never stop moving and shooting... or you'll die.

Steel Alcimus is a top-down helicopter shooter. Complete various tasks with your ally aircraft; such as saving the carrier, taking down the buildings, carrying objects, etc.

There is a quarantine declared throughout the orbit so all the pilots are grounded except for the few ones allowed to participate in training battles. Join their ranks for blazing fast space battles with another players in this top-down shooter game

Vectrix is a rhythmic, techno, top-down shoot 'em up with a synthwave soundtrack and a grid of enemies based on John Conway's "Game of Life" cellular automaton!

Gangs of Space is a massively-multiplayer Rogue Shmup where Gangs of players compete for the conquest of the galaxy.

Fast-paced top-down shooter in a world abandoned by mankind. To replicate their creators, mechs invented "Mood Solution", but lords got possessed by emotions. Fight with friends or by yourself to annihilate hordes of deadly bots. Modify your Guns and uncover the Emotional Abilities. Choices Matter.

Vacant Kingdom is a synthesis of bullet hell and story-driven action-RPG. Explore a whimsical yet desolate land and uncover the mystery of why everyone disappeared.

Veterans Online is a thrilling top-down twin-stick shooter suited for both casual and hardcore players, featuring fun warfare with easy to learn but hard to master mechanics.

Relic Hunters Zero: Remix is a remaster of the FREE 1 million player hit game about blasting evil space ducks and turtles with tiny cute guns. It’s fast, it’s tactical, and feels deliciously smooth to play. Unlock new weapons, characters and relics to defeat the Ducan Commander!

A hololive fangame featuring Inugami Korone of hololive GAMERS! Collect as many Korone Boxes as possible while contending with an endless onslaught of enemies and bosses using whatever weapons you happen to pick up!

⚠️No Online Multiplayer⚠️ Shoot, explode, push or slash your friends in this out of hand game. Play 2-8 players who've all lost their arms in a tragic accident to be the last one standing. Now it's up to you to use your makeshift mechanical arm and the items at hand to eliminate your former friends.

Ignition Arena is a free-to-play, fast-paced tactical PvP game where players build and customize ships for intense space battles. Compete in dynamic arenas featuring strategic combat, skill-based mechanics, and extensive ship customization. Outsmart and outgun opponents to claim victory!

Play as the cyber-messiah as you bring judgment upon legions of heretics at the Armageddon. Build a deck of powerful abilities, scale up your gameplay with artifacts and create powerful synergies to smite the sinners!

Overclocked: The Aclockalypse is a roguelike bullet hell following The Keeper’s time-twisting battle to reclaim The Eternal Sands from Greenwich and her clockwork army.

Dominance is a multiplayer top-down shooter, built on a no-limits attitude. Choose between a rich variety of different ability and item combinations, select one of 6 distinct characters. Battle up to 24 foes on the ever-evolving terrain — and prove your Dominance.

Synthbiotic dungeon is a fast paced, isometric, online multiplayer dungeon crawler in which you make the dungeon. Play as one of up to three runners running the gauntlet or as the dungeon master pulling the strings.

Become Ghunter, a cook gnome that will create dishes by cooking creatures... ALIVE!! Use your various cooking based weapons to cook your prey alive and brutally finish them off with your multi-purpose melee weapon! Save the Kingdom by submitting your delicious dishes!

Gene Shift Auto is a roguelike-inspired battle royale set in a GTA-style city. Fight cops, do missions and win supplies to level up random skills. Create clever combos and adapt your build for the final showdown.

Introducing Jewel Run, the ultimate multiplayer action game that puts a hilarious spin on burglary! Join the heist as two teams with distinct gameplay styles go head-to-head: Will the cunning thieves outsmart the magical orchard's vigilant guards, or will the guardians protect their treasures?

We are now going into open beta, free to play. This is a 5 year long project by 1 developer. Local 4 player shared screen and Controller support is still early, and results may vary. Internet play has been added, and offers different modes of play like battle royal, timed, etc..

Survive hordes of blood hungry enemies and hope for the best upgrades while you level up! Power Fantasy is a fresh rogue-surviors-like with unique heroes and tons of customization.

Spread across a campaign mode and 8 mini games, take on a variety of missions from bug hunts, protection detail, desperate last stands and rescue missions!

Eliminate your negative emotions (but save the good ones!) as Agent B. Cell, in this intense and wacky arcade style shooter!

NetGunner delivers intense multiplayer competition in the style of a twin-stick shooter, with a theme based around computer hacking. Players have access to multiple types of weapons to damage and throw opponents around the map. The last surviving player wins the round.

An online Player v Player battle!