Is that the only one?
Is that the only one?
That's for Common Lisp (CL), which you may or may not want to develop in; I personally frequently choose to write in CL because it has a very large library, and because it has SLIME.
For Scheme, Emacs is also good, but there isn't something analogous to SLIME.
SLIME has go-to-definition of a function as one of its more basic features, along with auto-completion, convenient listings of arguments when you first write down a call to a particular function, and much more.
I have a quick question that I can't justify creating a new thread about. Since you brought up Lisp implementations though...
I was about to choose to write my programs with SBCL, but it looks like the Win32 port isn't yet complete. Since I'm aiming towards using Lisp in games, speed is an issue, and so is running on Windows. Would you or anyone reccomend a dialect of Lisp which is fast and runs under Windows? Even just 1/4th the speed of C would be excellent.
I believe CLISP runs on Windows. I have no idea whether this is at all practical, since I don't use Windows, but maybe you could use a Unix emulator like Cygwin and run SBCL (and your game) in that, invisibly to the user?
Scheme - quack.el (http://www.neilvandyke.org/quack/) Not so powerfull as SLIME.
AFAIK there was a support for scheme (scheme48) in SLIME. I don't know a status of it.
http://puggy.symonds.net/~deep/emacside.html - "Emacs as your IDE" (A quick start summary of core commands)
And if you find inspiration useful:
http://steve-yegge.blogspot.com/2007/02/my-save-excursion.html
http://steve-yegge.blogspot.com/2006/06/shiny-and-new-emacs-22.html