Here's how to get started with Cleven on OS X: brew install rlwrap brew install sdl2 brew install sbcl wget https://beta.quicklisp.org/quicklisp.lisp

Here's how to get started with Cleven on OS X: brew install rlwrap brew install sdl2 brew install sbcl wget https://beta.quicklisp.org/quicklisp.lisp shasum -a 256 quicklisp.lisp # c.f. https://www.quicklisp.org/beta/ sbcl Within SBCL, run the following: (load "quicklisp.lisp") (quicklisp-quickstart:install) (ql:add-to-init-file) Press enter. Exit SBCL by running: (exit) Then run cd ~/quicklisp/local-projects/ git clone https://github.com/afainer/cleven.git cd cleven rlwrap sbcl Inside SBCL, run: (ql:quickload "sdl2") (ql:quickload "cleven") (load "sandbox.lisp") (in-package #:sandbox) (run-sandbox) It pops up a window! But I ran into an error at this point: debugger invoked on a SIMPLE-ERROR in thread #<THREAD "Render thread" RUNNING {1006D70EF3}>: Shader compilation failed. The info log is: ERROR: 0:24: '' : version '330' is not supported I tried switching computers, but I got the same error. I'm running an AMD Radeon R9 M370X on Yosemite. Unfortunately I'll have to stop here, since I'm a bit pressed for time. This project is way cool, so I'll look into it more later. If you have any ideas how to debug it further, please let me know here or by email. Those steps might work for other people on OS X, though. There's probably some kind of driver issue on my end. (Ah, the life of gamedev...) Edit: Created issue https://github.com/afainer/cleven/issues/1 https://github.com/afainer/cleven/issues/1