It is possible. That's how I leveled up from level 1 to 70 in a few days :)
However, you should not play this in the nightmare mode. There is an alloy limit, that causes auto ban. If you play a X4 nm with spawn rate increase, there is a big chance you will hit that 2400 alloy pick up and get an auto ban.
However, normal MP in X2 boosted, smaller level players, smaller spawn rate hack (X20) does help you.
1, Open tab, start the game and then create the lobby.
2, Open another tab, start game and wait until it loads. Then launch KHUT. Now there are two ways to apply hack:
- First, Autoscan. If it shows up, select the last/second tab that offers. Select hack and 'Apply'.
- Second, select the game manually. Go to screen processes and hit search. It always selects you the active tab, many times even "jump to it", showing which process you are about to apply the hack at.
Hit start and close any other than the last one. This should help you to get a solo boosted game with applied hacks