If you don't want to be killed by underground attacks, please log into the Issue Council and contribute the following issues with “Critical” severity to urge CIG to fix them. 1.Title: Player Under Planet Shooting up Through Planet into Mine -#STARC-165251 2. Title: Spline jump to OLP jumps through planetary body -#STARC-160326 This is the viable way to avoid being killed by other players from underground :)