You can beat the entire game with Flaks only
If you purchase something with RP and then repeat the level, you get the RP refunden, but can keep the new tower
5/5 But you need to rework the Physics Lab. Either make it unique, or stronger diminshing returns. Beacuse here is how i beat nearly every map with very few exceptions:
1. One Starport Carrier (the one for 550 total cost)
1.5 If there are 2 enemies build Two of them facing to each enemy
2. One Big Reactor
3. Build Physics Labs only after that point.
Nothing can beat this. On Defense maps i never saw the enemy actually.
On one map i build an additional big rockter tower to destroy the nearby enemy structures. But basically just get the cheapest carreir(550) and build physics labs everywhere
the music is so awesome! keeping me excited but not beying too annoying and neither repetitive! 5 statrs, fav, lovely descriptions, using already known elements to forge something still familiar & new and challenging, excellent game
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 "Spacedust Defender"){kind=icon}
 "NGU IDLE"){kind=icon}
 "Realm Revolutions"){kind=icon}
 "Realm Grinder"){kind=icon}
 "Swarm Defender"){kind=icon}
 "Fear Less!"){kind=icon}
 "Obliterate Everything 2"){kind=icon}
 "Battle without End"){kind=icon}
 "Band Of Heroes"){kind=icon}
 "Demons vs Fairyland"){kind=icon}
 "bit Dungeon"){kind=icon}
 "Monster Saga"){kind=icon}
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 "Path of Honor: Chapter 1"){kind=icon}
Oh, I completely missed this. (btw you can sell it back no problem) I am solving this right away. *edit* Should be fixed!