0.9.5 took something of an unexpected turn… a friend of mine has been requesting an "endless" mode for a while, and I've seen a few screenshots and forum posts which reveal that players are enjoying spending some time exploring additional levels before finishing the game.
AND SO: Mysterious Space 0.9.5 introduces Endless Mode:
- Endless Mode is available from the very beginning - no need to unlock it
 - It features a straight line of systems that goes on forever, including random alien shops (I may change the structure to add occasional branching paths, in a future update)
 - The difficulty of enemies - and the power of equipment you find - increases twice as fast in Endless Mode as it does in Normal/Story Mode (and increases without limit!)
 - Endless Mode has its own High Score table
 
I should say that the endless growth of equipment power, and the ceaseless rate at which enemies will begin to spawn, may introduce unexpected behavior in the game, and probably some weird bugs! Please report any you find, and I'll patch them up as quickly as possible!
finally: there's a few other tweaks in this update, however the promised "additional ways to spend your space money" is not among them >_> sorry about that. Endless Mode ended up taking over this update!
the full changelog is available here: 
https://mysteriousspace.com/changelog/0-9-x/I know it's been a long time between updates, so thanks for your patience, and thanks for playing Mysterious Space! :)