diff --git a/code/game/gamemodes/heist/heist.dm b/code/game/gamemodes/heist/heist.dm
index 75472e9c96c..2607db9f21b 100644
--- a/code/game/gamemodes/heist/heist.dm
+++ b/code/game/gamemodes/heist/heist.dm
@@ -10,6 +10,10 @@ var/global/list/obj/cortical_stacks = list() //Stacks for 'leave nobody behind'
 	required_players = 15
 	required_enemies = 4
 	round_description = "An unidentified bluespace signature has slipped past the Icarus and is approaching the station!"
+	extended_round_description = "The Company's majority control of phoron in Nyx has marked the \
+		station to be a highly valuable target for many competing organizations and individuals. Being a \
+		colony of sizable population and considerable wealth causes it to often be the target of various \
+		attempts of robbery, fraud and other malicious actions."
 	end_on_antag_death = 1
 	antag_tags = list(MODE_RAIDER)
 
diff --git a/code/game/gamemodes/mixed/bughunt.dm b/code/game/gamemodes/mixed/bughunt.dm
index 5ca6ed82a29..45365db328d 100644
--- a/code/game/gamemodes/mixed/bughunt.dm
+++ b/code/game/gamemodes/mixed/bughunt.dm
@@ -1,6 +1,7 @@
 /datum/game_mode/bughunt
 	name = "Bughunt"
 	round_description = "A mercenary strike force is approaching the station to eradicate a xenomorph infestation!"
+	extended_round_description = "Mercenaries and xenomorphs spawn in this game mode."
 	config_tag = "bughunt"
 	required_players = 15
 	required_enemies = 1
diff --git a/code/game/gamemodes/nuclear/nuclear.dm b/code/game/gamemodes/nuclear/nuclear.dm
index f6c9bccd7c5..8bf8057f01e 100644
--- a/code/game/gamemodes/nuclear/nuclear.dm
+++ b/code/game/gamemodes/nuclear/nuclear.dm
@@ -7,6 +7,10 @@ var/list/nuke_disks = list()
 /datum/game_mode/nuclear
 	name = "Mercenary"
 	round_description = "A mercenary strike force is approaching the station!"
+	extended_round_description = "The Company's majority control of phoron in Nyx has marked the \
+		station to be a highly valuable target for many competing organizations and individuals. Being a \
+		colony of sizable population and considerable wealth causes it to often be the target of various \
+		attempts of robbery, fraud and other malicious actions."
 	config_tag = "mercenary"
 	required_players = 15
 	required_enemies = 1