The living crew and time checks are now both config options.

code/controllers/configuration.dm

@@ -102,6 +102,8 @@
 	var/continuous_round_wiz = 0
 	var/continuous_round_malf = 0
 	var/continuous_round_blob = 0
+	var/midround_antag_time_check = 60  // How late (in minutes) you want the midround antag system to stay on, setting this to 0 will disable the system
+	var/midround_antag_life_check = 0.7 // A ratio of how many people need to be alive in order for the round not to immediately end in midround antagonist
 	var/shuttle_refuel_delay = 12000
 	var/show_game_type_odds = 0			//if set this allows players to see the odds of each roundtype on the get revision screen
 	var/mutant_races = 0				//players can choose their mutant race before joining the game
@@ -394,6 +396,10 @@
 					config.continuous_round_malf	= 1
 				if("continuous_round_blob")
 					config.continuous_round_blob	= 1
+				if("midround_antag_time_check")
+					config.midround_antag_time_check = text2num(value)
+				if("midround_antag_life_check")
+					config.midround_antag_life_check = text2num(value)
 				if("shuttle_refuel_delay")
 					config.shuttle_refuel_delay     = text2num(value)
 				if("show_game_type_odds")

code/game/gamemodes/game_mode.dm

@@ -112,7 +112,7 @@
 			if(SSshuttle.emergency.timeLeft(1) < initial(SSshuttle.emergencyCallTime)*0.5)
 				return 1
 
-	if(world.time >= 36000) //If it's been over an hour, just end it
+	if(world.time >= (config.midround_antag_time_check * 600))
 		return 0
 
 	var/living_crew = 0
@@ -120,7 +120,7 @@
 	for(var/mob/Player in mob_list)
 		if(Player.mind && Player.stat != DEAD && !isnewplayer(Player) &&!isbrain(Player))
 			living_crew++
-	if(living_crew / joined_player_list.len <= 0.7) //If a lot of the player base died, we start fresh
+	if(living_crew / joined_player_list.len <= config.midround_antag_life_check) //If a lot of the player base died, we start fresh
 		return 0
 
 	var/list/antag_canadates = list()

config/game_options.txt

@@ -225,4 +225,12 @@ ASSISTANT_CAP -1
 STARLIGHT
 
 ## Uncomment to bring back old grey suit assistants instead of the now default rainbow colored assistants.
-#GREY_ASSISTANTS
+#GREY_ASSISTANTS
+
+### Midround Antag (aka Mulligan antag) config options ###
+
+## A time, in minutes, after which the midround antag system stops attempting to run and continuous rounds end immediately upon completion.
+MIDROUND_ANTAG_TIME_CHECK 60
+
+## A ratio of living to total crew members, the lower this is, the more people will have to die in order for midround antag to be skipped
+MIDROUND_ANTAG_LIFE_CHECK 0.7