Hot answers tagged mission-design
Heres another good list: http://www.io.com/~sjohn/plots.htm Also I second what the first poster said. If you like problem solving and programming, you ARE creative.
Some quick Googling: http://www.fileplanet.com/62242/60000/fileinfo/StarTopia-Mission-Editor
How about exploring a space craft adrift in space? You could start with 15 rooms or areas to explore and throw in puzzles. Maybe the onboard computer has gained self awareness and actively tries to trip up the player to protect itself (remember HAL from 2001: A Space Odyssey?) Throw in some rogue androids, maybe some mercenaries are in the middle of ...
To get you started without reading too much: Not so distant future. Person waking up without memories. World is controlled by two huge rivalling corporations. The person (our protagonist) needs to do missions and get too deeply involved with both of the corporations to be able to discover his/her past and why he/she has so many enemies. Then continue to ...
Might be worth having a read through these common RPG scenarios. Hard to say if they'll apply directly to your game without knowing what you're doing but they should be applicable to any genre really without too much imagination. (And if you love programming you're at least a little bit creative!)
Only top voted, non community-wiki answers of a minimum length are eligible