Crossfire

Any number of players can connect and play on the public servers, finding and using items and battling monsters. They can cooperate or compete in the same world which includes both static and randomly generated content. It is a client and server based game with the ability to be played over the Internet, on a local network setting, or on a single computer setup.

Crossfire is based in a medieval fantasy world. Players can choose any of 13 races from dragons (fire hatchlings) to quetzalcoatl as well as the more average human and elf. They can also play as one of 15 classes or professions which range from alchemist to a monk to a warrior. The game has a comprehensive skill system that attributes experience points to each skill, instead of the character earning general experience points.

Crossfire's development history started in mid-1992. It originally started as a Gauntlet clone developed by Frank Tore Johansen at the University of Oslo in Norway. After a name change in that same year and brief hosting time at University of California, Berkeley (Jul-1999 to Jan-2001), the project now resides at SourceForge where development continues.

Crossfire started with just one indoor map and then increased to 4 indoor maps with one-way portals from level 1 to level 4. Upon clearing the last level, there was nothing more for the player to do. Spells were limited to magic bullet (the first spell), fireball, magic missile, burning hands and lightning bolt. Later, when two-way portals were implemented, development and content contribution expanded greatly.

In 1999 Crossfire was featured by Linux Journal. The game was downloaded over 550,000 times from SourceForge.net between 2000 and April 2020.

Crossfire was used as the base of a number of commercial and free MMORPGs, such as Wyvern, a Java rewrite, Graal Kingdoms, which closed its code and content, and Daimonin, which only used the server code but features an isometric view and a different project philosophy focused on a single main server. Deliantra is another fork of the Crossfire project, primarily aiming to improve the quality of its code and in-game content.