Index: binaries/data/mods/public/gui/session/chat/ChatMessageFormatSimulation.js
===================================================================
--- binaries/data/mods/public/gui/session/chat/ChatMessageFormatSimulation.js
+++ binaries/data/mods/public/gui/session/chat/ChatMessageFormatSimulation.js
@@ -118,13 +118,33 @@
 				"player": colorizePlayernameByID(msg.players[0])
 			});
 
-		let mPlayers = msg.players.map(playerID => colorizePlayernameByID(playerID));
-		let lastPlayer = mPlayers.pop();
+		let players = msg.players.map(playerID => colorizePlayernameByID(playerID));
+		let playerCount = msg.players.length;
+		if (playerCount == 1) {
+			let playerList = players[0];
+		} else if (playerCount == 2) {
+			let playerList = sprintf(
+				translate("%(firstPlayer) and %(lastPlayer)"),
+				{
+					"firstPlayer": players[0],
+					"lastPlayer": players[1]
+				}
+			);
+		} else {
+			let lastPlayer = players.pop();
+			// Translation: This comma is used for separating first to penultimate elements in an enumeration.
+			let firstPlayers = players.join(translate(", "));
+			let playerList = sprintf(
+				translate("%(firstPlayers), and %(lastPlayer)"),
+				{
+					"firstPlayers": firstPlayers,
+					"lastPlayer": lastPlayer
+				}
+			);
+		}
 
 		return sprintf(translatePlural(msg.message.message, msg.message.pluralMessage, msg.message.pluralCount), {
-			// Translation: This comma is used for separating first to penultimate elements in an enumeration.
-			"players": mPlayers.join(translate(", ")),
-			"lastPlayer": lastPlayer
+			"players": playerList
 		});
 	}
 };
Index: binaries/data/mods/public/simulation/components/EndGameManager.js
===================================================================
--- binaries/data/mods/public/simulation/components/EndGameManager.js
+++ binaries/data/mods/public/simulation/components/EndGameManager.js
@@ -51,8 +51,8 @@
  * @param {number} playerID - The player that should win.
  * @param {function} victoryReason - Function that maps from number to plural string, for example
  *   n => markForPluralTranslation(
- *       "%(lastPlayer)s has won (game mode).",
- *       "%(players)s and %(lastPlayer)s have won (game mode).",
+ *       "%(players)s has won (game mode).",
+ *       "%(players)s have won (game mode).",
  *       n));
  */
 EndGameManager.prototype.MarkPlayerAndAlliesAsWon = function(playerID, victoryString, defeatString)
@@ -78,8 +78,8 @@
  * @param {array} winningPlayers - The players that should win.
  * @param {function} victoryReason - Function that maps from number to plural string, for example
  *   n => markForPluralTranslation(
- *       "%(lastPlayer)s has won (game mode).",
- *       "%(players)s and %(lastPlayer)s have won (game mode).",
+ *       "%(players)s has won (game mode).",
+ *       "%(players)s have won (game mode).",
  *       n));
  */
 EndGameManager.prototype.MarkPlayersAsWon = function(winningPlayers, victoryString, defeatString)
@@ -169,9 +169,10 @@
 			"players": [allies[0]],
 			"allies" : allies,
 			"message": markForPluralTranslation(
-				"%(lastPlayer)s has won (last player alive).",
-				"%(players)s and %(lastPlayer)s have won (last players alive).",
-				allies.length)
+				"%(players)s has won (last player alive).",
+				"%(players)s have won (last players alive).",
+				allies.length
+			)
 		});
 	}
 	else