Note that some other scripts are useful for this but which aren't actually specific to the game bits, which can be found in https://github.com/kergoth/dotfiles:
- extractico, extracticns: wrap around wrestool extraction of icons from exe or dll files, also passed to makeicns for the latter
- new-app: create a mac .app to run a specified script, useful for creation of custom wrappers
- apath: resolve a Finder alias
- mkalias: create a Finder alias
- select-random: select a random input line from stdin, used by run-random-game
- tag-find: handy wrapper around mdfind for selection of files matching specified tags (or without specified tags). find-games requires this.