| Publishers | Grandel, Inc. |
|---|---|
| Years active | 1986 to unknown |
| Genres | wargame, science fiction, play-by-mail |
| Languages | English |
| Playing time | unlimited |
| Materials required | Instructions, order sheets, turn results, paper, pencil |
| Media type | Play-by-mail or email |
Galactic Prisoners (or GP or G.P.) is a closed-end, play-by-mail (PBM) wargame.