It's... mostly here?

Config/DefaultEngine.ini

@@ -4,6 +4,8 @@
 GameDefaultMap=/Game/Maps/Menu.Menu
 EditorStartupMap=/Game/Maps/Desert.Desert
 ServerDefaultMap=/Game/Maps/Menu.Menu
+bUseSplitscreen=False
+bOffsetPlayerGamepadIds=True
 
 [/Script/WindowsTargetPlatform.WindowsTargetSettings]
 DefaultGraphicsRHI=DefaultGraphicsRHI_DX12

DesertLandscape.uproject

@@ -1,6 +1,6 @@
 {
 	"FileVersion": 3,
-	"EngineAssociation": "5.4",
+	"EngineAssociation": "{26639E4C-4AFB-FBC0-1A9A-3F975E1A3509}",
 	"Category": "",
 	"Description": "",
 	"Plugins": [
@@ -18,6 +18,10 @@
 		{
 			"Name": "NiagaraFluids",
 			"Enabled": true
+		},
+		{
+			"Name": "Bridge",
+			"Enabled": true
 		}
 	]
 }