The launcher work, but when using the Launch button, the program quit without any feedback (no message, no error…), just a single bounce in the dock.
My config is a MacBook unibody with MacOS X 10.6.7.
I found a Crash Log inside the "~Library/Logs/CrashReporter" folder:
Process: survivor 
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd 
Date/Time: 2011-04-14 12:12:48.617 +0200
OS Version: Mac OS X 10.6.7 (10J869)
Report Version: 6
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0
Dyld Error Message:
Library not loaded: /usr/X11R6/lib/libfreetype.6.dylib
Referenced from: /Applications/survivor.app/Contents/Resources/survivor.app/Contents/MacOS/../Framework/SDL_ttf.framework/Versions/A/SDL_ttf
Reason: image not found
0x8fe00000 - 0x8fe4162b dyld 132.1 (???) <A4F6ADCC-6448-37B4-ED6C-ABB2CD06F448> /usr/lib/dyld
I looked, and I had no /usr/X11R6 folder on my installation (even if I had an "/usr/X11" folder).
I pop'ed my 10.6 install DVD and installed X11, which, if I remember correctly is now an optional install since 10.5 or 10.6.
After Installing X11 (no restart needed) the games started to work properly.
Please add a test in the launcher, to check the presence of X11 on MacOS X, and inform the users of the install procedure.