Captain Blood , developed by Bob Morlock, is a sci-fi video game set in outer space and alien worlds. While testing the game, Morlock found himself trapped inside it after a hyperspace accident clones him thirty times. With his life-sustaining fluid depleted, Captain Blood must track down and destroy the remaining twenty-five clones, which he believes are hiding somewhere in the galaxy.
Captain Blood is an open-ended first-person adventure game where the player commands a biological ship called Ark. The goal is to travel to various planets, communicate with aliens, and gather clues about the clones' whereabouts. The player must launch probes onto planet surfaces, navigate through landscapes, scan planets, and sometimes teleport aliens to different locations.
Conversations with the aliens are conducted via the UPCOM interface, using over 150 icons to represent different concepts. Since each alien speaks their own language, the player must input various combinations of icons to understand them and communicate effectively. Successfully concluding conversations may offer clues or unlock other planets, but the protagonist's health deteriorates over time, making it more challenging to control the game.