As it is, it's immensely difficult to get armor components for people who multiplay and the fact that each player spends the same base 10 energy it becomes exponentially less efficient to play multiplayer as opposed to soloing for everything.
Add to the fact that enemy health more or less multiplies, and there's really little incentive to play with others, even though this is advertised as a multiplayer game.
I suggest lowering the gate cost for each player, decreasing with more players. Given that tokens, coins, and heat are shared (unless you want to change that which basically means there's even LESS incentive to multiplay) this would make the energy spent/total assets gained about even.
1 player: Each pays 10, 10 total energy spent
2 player: Each pays 7, 14 total energy spent
3 player: Each pays 6, 18 total energy spent
4 player: Each pays 5, 20 total energy spent
Signed!