Well... I've made something...

UPDATE
Ok, got some sleep) time for bug fixing)
-"sky" now scrolls properly
-trade/attack now should tigger without problems
-fixed missing sounds

UPDATE #2
Added x64 version, now attack trade should work if you have x64 system. I hope.

UPDATE #3
Yes, finding anything is a *. Ok, I've made everything closer (I'm not sure if rebalancing is allowed by rules though)

I was plannig make some pong game... In the end I've got some trading/exlore/space/wtf simulator. WHY?

By looking at comments, i guess i need how to play section...

Q - Buy stuff
E - Attack stuff)
(Both work only at close distane)

Battle is turn-based with instant result(screenshot)

WASD, arrows - moving, of course

Features:
what i did make
-AI trading system (transports flying from planet to planet delivering stuff)
-Simple economic system(richer planets will sell/buy more stuff for better price, also random taxes)
-Simple battle(you can raid transport ships)
-3 game endings(game overs obviously)
-Upgrade system for ship
-Food/fuel

what i didnt make(due time limit)
-Actual economic
-Actual battle
-Actual game ending/purpose
-Radar (good luck finding anything)
-GUI
-Animations
-Ship variations
-Piracy
-Stuff i forgot

Damned deadlines
Be careful with source, its ugliest code i have written for the past 5 years

Unity, cgMusic, sfxr