PARPG is a post-nuclear role playing game. It is inspired in multiple ways by the classics of the golden age of isometric RPGs: first and foremost Fallout (for setting), but also Arcanum (for quality of graphics), as well as Planescape: Torment (for quality of written dialogue). It puts heavy emphasis on choice and consequence, based on the statistics of the character you play, while minimizing the importance of the player's reflexes. Therefore, combat is not fought in real-time but in a turn-based mode. Instead of full 3D flexibility, the game focuses mainly on using high quality isometric 2D graphics. This puts fewer demands on target platforms and also simplifies game development.
RPGRobotAlive is an aide to a role playing games. It displays a board with walls and representations of the players that you can move around the dungeon. You can also place treasure or monsters in the dungeon. The program only keeps track of the locations of things, so you have to apply the rules of the game yourself to determine what happens in an encounter between the players and the contents of the dungeon. This software is generic and can be helpful with many different kinds of role playing games.
Naev is a 2D space trading and combat game, in a similar vein as Escape Velocity. Naev is played from a top-down perspective, featuring fast-paced combat, many ships, a large variety of equipment, and a large galaxy to explore. The game is highly open-ended, letting you proceed at your own pace.