That is a bizarre couple of hoops to jump through, but for Linux Mint Engrampa did indeed work where 3 other archive managers had failed. Every time I run it I either get 2 or 4 errors depending on whether I run it with sudo, and editing nw.sh to launch by itself didn't work. The audio is always intolerably stuttery no matter what I do, sounds like maybe a buffering issue?
Here's what it gives me on launch when I use sudo:
- LaunchProcess: failed to execvp:
/home/user/Games/Rex Another Island/linux64/nacl_helper [13745:13745:0712/085229.517280:ERROR:nacl_fork_delegate_linux.cc(316)] Bad NaCl helper startup ack (0 bytes) [13743:13766:0712/085229.655827:ERROR:nacl_browser.cc(306)] Failed to open NaCl IRT file "/home/user/Games/Rex Another Island/linux64/nacl_irt_x86_64.nexe": -4
To make matters worse, the Windows release doesn't even seem to want to work via Wine.