Latest Release (Github) Spacedock Release License: Config files are GPL-V3. All art assets are All Rights Reserved. Scott Kerman watched as the enormous wedge-shaped space plane, known as the Mk-33, began launch preparations. Unlike previous generations of rockets, the Mk-33 needed no lengthy preflight checks. Just perform a quick visual inspection, run diagnostics, load a new payload, roll it out to the pad, rotate it vertical, fuel, and launch. At the end of its mission, la