Desperados is a western roleplaying game by Skycastle Games.
Character attributes in Desperados are determined randomly by rolling 4d20. Attribute checks require a player to roll equal or less than the attribute on a d100.
Skills are based on the attributes and can be improved by buying skill levels. Each level increases the base value of the skill by 5 percent. The number of skill levels that can be bought at character creation depend on the knowledge attribute.
The starting equipment is also rolled up. A player gets a number of rolls based upon the charisma and knowledge attributes. The first roll is made for the horse the character owns (or if he owns any). The next three rolls get him equipped with weaponry, and the remaining rolls are made on a "General Merchandise" table where items like rope, playing cards, tobacco, or a bible can be won.
Combat begins by determining initiative. This uses a secondary attribute, adjusted by the weapon used, and added to a d20 roll. To hit an enemy, a skill check is made, modified by the range, again depending on the weapon. If a hit was scored, damage is rolled. After that a d100 roll determines the hit location, which can halve, double or even triple the damage. Damage is subtracted from a character's life points. The average starting character has 17 life points. A standard revolver does 3d6 damage, so two or three unadjusted shots can be lethal, moreso a shot to a 2x or 3x hit location like the face, groin or chest. This is made even more dangerous because a damage over half the current hit points has a chance to knock a character out.
Desperados has also rules for aiming, fanning (fast-shooting with a revolver), hip-shooting, off-hand shooting, using two weapons, double-barreled shotguns, and firing two-handed weapons with a single hand. There are also brawling and dynamite rules.
A character gains experience points that can be spent to improve skills or attributes. There is also a renown system based on the experience.