|Released||2007 Jul 28|
|Updated||2010 Jan 21 (0.6.9I)|
|Platforms||Windows, Linux, Mac|
|Game Length||10-20 hours|
|Official site of Incursion|
Incursion: Halls of the Goblin King is a freeware roguelike game based on (but not strictly adherant to) the mechanics of the d20 system made available under the Open Game License by Wizards of the Coast.
The game boasts 9 races, 10 classes, 45 skills, and 17 gods all of them very well described and implemented and requiring totally different strategies to be played effectively though one can also decide to play as an atheist or a polytheist.
According to the developer, Incursion: Halls of the Goblin King is "a promo game for the upcoming roguelike epic Incursion: Return of the Forsaken", which will feature overland map, multiple dungeons, towns, more prestige classes and other features.
At the moment, Incursion features a single, randomly generated multilevel dungeon. Which could seem limiting but it feels like a complete game and requires several hours of gameplay to ascend and hundreds to master.
Return of the Forsaken is slated in the best case scenario for a release in the last quarter of 2011.
The developer has promised that the source code will be released at some point in the early future.
The great tech doc about the game is provided here. It could prove useful in roguelike development.