The per click income in the engine upgrades doesn't improve, it rather stays at the said upgrades properties, meaning for a max at 12% which rather limits the last of the trees usefulness
I will say though that the engine upgrades are the only ones which improve your active click percentage. It's not much but at higher output it can make a difference. Thanks for the comment and the play too! I appreciate it! Best, -Tim
I really like the game, especially the harder parts deep down below, where you gotta use minerals to survive, you get enough of them anyway :P Don't think i have to remind you of the parts with the trophies, the numbers are quite okay, except for the viscera, as you need a huge load of them to get the upgrades( i think at some point i needed them in each upgrade at the same time making some 30 viscera or sth like that:P)
Viscera is now easier to get (you can use dynamite), you can get more viscera from creatures at deeper depths, you can also spot them on the map with the right optics upgrade :D
which relic is this? please give detailed info so i can address it properly ingame.