Flexible level editor
Final Fantasy VIII Save Editor
LDraw™ editor for LEGO® style digital building instructions.
Final Fantasy VIII field archive editor
Final Fantasy VII field archive editor
A planetarium software that shows a 3D simulation of the night sky
EE Keeper is a saved game editor for Baldur's Gate Enhanced Edition.
Lego Island 2 Game Editor
Grepolis utility
Multi-platform game engine similar to old Megaman with a stage editor
2D Editor to manage garden or flat plan
Animation graph editor.
A traditional top-down OpenGL car racing game
A UnitEditor that can be modified to match exactly the requirements...