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Top freethat last about a half-hour tagged Open Source (145 results)

Explore games that last about a half-hour tagged Open Source on itch.io · Upload your games that last about a half-hour to itch.io to have them show up here.

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The automation tower defense game
AnukeVerified Account
Strategy
Recreates the classic Command & Conquer titles with a Free/Libre engine.
Strategy
Open Source Pixelart Sci-Fi Real Time Strategy Game
Strategy
A Fractal Racing Game
Racing
Sci-fi relationship simulation - can your space colony and your love survive?
Visual Novel
A grand strategy game, revolving around political intrigue and ancient evils
Strategy
Send dinosaur eggs to the future before a meteor hits the Earth!
Action
A simple text adventure about surviving the wasteland
Survival
Play in browser
Yet another metroidvania & platformer/shooter.
Platformer
Play in browser
A puzzle game featuring romance, explosions, and daytime television.
Puzzle
Play in browser
Track down the Bully Bee and get your knapsack back!
Adventure
Command the forces of The Project in a battle to rebuild the world.
Strategy
It learns. It WILL find you.
Survival
A tic-tac-toe within a tic-tac-toe
Puzzle
Play in browser
Strategy game with simultaneous turns where nature is a finite resource
Strategy
20 Levels of Screen-Wrapping Arcade Action!
Platformer
Play in browser
A hack n slash where you can run around, kill bad guys and get assimilated.
Adventure
Play in browser
Save Earth from the clutches of The Giant Brain from Planet X!
Adventure
Open-source Touhou fangame
Shooter
Strategy turn-based combat in 64 pixels!
Strategy
Play in browser
An indirect control real-time strategy game about robot colonies
Strategy
Play in browser
A game written in x86 Assembly.
Port of Glider PRO, the classic Macintosh paper airplane game
Action
Play in browser
A surreal squigglevision adventure about Mary and her friends.
Interactive Fiction
Play in browser
As if an answer to his prayers, a stranger shows up on his balcony.
Visual Novel
Fight over dat Ancient - Free to play browser card game
Card Game
Play in browser
Short visual novel with a lion protagonist
Visual Novel
Open-source Hollow Knight reimplementation via SPD engine.
Adventure
A little 8-bit MetroidVania
Platformer
Short clicker/idle game where you pollute and consume!
Simulation
Play in browser
A metroidvania platformer about a spider
Action
Open source third person time trial shooter.
Shooter
Python programming puzzle game
Puzzle
A humorous exploration of the dynamics of just-in-time supply chains (sources available)
Simulation
2D survival in dark underground
Survival
Play in browser
One of the best MMORPGs to play while at work/school.
Role Playing
Play in browser
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