To improve this game, you need to add a pvp mode, we already have pve and co-op (races). You could add a new type of blocks called turrets which are guns that can be used against other players, but only in a separate mode for battle.

The story needs to be expanded, add more quests to it so the gameplay isn't just mining endlessly.

Economy: increase the crystal yield of mines by 100% and decrease the cost of repairing drones by 50%. It takes too long to grind for one single block and drone repair is very expensive. You also could make warping unlimited or decrease the cool-down time by 50%.

You can also add more elements to increase the variety of drones to the game, not a lot, just 2-3, such as earth, metal, and air.