Liblist from 
Half-Life with 25th anniversary update.
// Valve Game Info file
// These are key/value pairs. Certain mods will use different settings.
//
game "Half-Life"
startmap "c0a0"
trainmap "t0a0"
mpentity "info_player_deathmatch"
gamedll "dlls\hl.dll"
gamedll_linux "dlls/hl.so"
gamedll_osx "dlls/hl.dylib"
secure "1"
type "singleplayer_only"
animated_title "1" //25th addition
hd_background "1" //25th addition