so i down loaded abs new and tasty, and installed it fine. but i cant get the start.sh to work. i click run and nothing happens. it is already set to chmod +x start.sh . also if i try from the terminal it says no dir.
any help would be nice. im on the latest mint

Oh dear, noone answered you?

Did you tick the 'allow to run as executive' (sorry, wording from memory) box in properties?

EDIT: I should read questions properly before answering....

That's what chmod +x <filename> does. Do you have libsdl2-2.0-0:i386 installed?, the game page say that it's required.
Do note, this is the 32-bit libsdl, as indicated by ":i386", not the 64-bit one, so you may need to enable multiarch, which I don't know how to do on Ubuntu/Mint.

sudo apt install libsdl2-2.0-0:i386 Edit, wait, it's Mint, so... I don't know actually.

What OP wrote is very vague, but from "no dir" I'd expect that something else is the problem here.

Mint is very much Ubuntu at that level, so it should work. Mint Debian might be slightly different.

The game runs fine for me on Arch, and I don't know Ubuntu or Mint that well, so I just suggested the first thing I thought of.