hackmud is a retro cyberpunk RPG where you play a digital persona in a chaotic, unpredictable, and often goofy abandoned internet. Enter a 90s hacker movie filled with scripts, scams, and sabotage. Explore the world of digital secrets and forge your legacy through cunning, creativity, or disruption.

Screeps: World is an open source MMO strategy sandbox game for programming enthusiasts. You control your colony by writing JavaScript code that operates 24/7 in the huge persistent online open world.

chatventures is a text-adventure MMORPG. you travel through a fantasy world where you interact with every thing through text commands such as "punch" and "check". each area is a different chatroom!

BatMUD is a text-based medieval fantasy massively multiplayer online game with an extremely rich set of features - constantly in development since 1990.

LUCKCATCHERS2 is a massive multiplayer online game in an open world inhabited by fire-breathing dragons. Travel using various aircraft. Choose your path. Become a brave adventurer, pirate, bounty hunter, transporter or manufacturer. Live in cities or build your own settlements.

World Warfare is an intense 3D, Real-time Strategy game where hundreds of players around the world command dozens of land, sea, and air units in World War II-inspired combat. The goal is conquest and supremacy.

Ascent is a PVE sandbox space MMO with 270 BILLION star systems and an emphasis on strong Sci Fi. It encourages Exploration, Colonization, Research, Asteroid mining, Farming, Trading, and Combat. Outside the tutorial sector, everything in-game has been built by players.

Every activity in Puzzle Pirates is a uniquely fun puzzle: be it sailing, gunning, or hauling treasure, your own puzzling skill determines your success!

Fleet up with thousands of players in The Infinite Black -- The wildly popular online space combat and adventure game! Command massive spaceships, form powerful corporations, and battle it out in never-ending intergalactic warfare!