diff -urp freeciv-2.1.0.OLD/common/game.h freeciv-2.1.0/common/game.h
--- freeciv-2.1.0.OLD/common/game.h 2007-10-27 07:23:29.000000000 -0400
+++ freeciv-2.1.0/common/game.h 2007-10-28 11:16:53.000000000 -0400
@@ -192,7 +192,7 @@ bool setting_class_is_changeable(enum ss
#define GAME_MIN_MAX_PLAYERS 1
#define GAME_MAX_MAX_PLAYERS MAX_NUM_PLAYERS
-#define GAME_DEFAULT_AIFILL 0
+#define GAME_DEFAULT_AIFILL 5
#define GAME_MIN_AIFILL 0
#define GAME_MAX_AIFILL GAME_MAX_MAX_PLAYERS