Avadan is a role-playing game situated in space. The player travels from planet to planet in order to find the mystical oracles. The player is placed in nethack-style dungeons. The whole game is rogue-like, but with the extension of space travels. The dungeons are shown with tile graphics, and space looks a bit better. On space stations, the player can talk to NPCs, get quests, and trade artifacts found in the dungeons.
LambdaRogue is a rogue-like role playing game set in a strange underworld. Men and the species of Drekh'nar once lived peacefully together on Earth, both not far away from reaching the stars with spaceships. A misunderstanding led to war before these dreams could be realized. After a long and bloody battle, a peace treaty was created, forcing mankind to go underground. Mankind has lost the most of its technological knowledge, but Ahna, a priestess, is searching for the Book of Stars, which could bring humans back to the surface and beyond. And you are Ahna's agent.