diff --git a/data/wiki-game-cache.yaml b/data/wiki-game-cache.yaml
index 0b717108..322e5bad 100644
--- a/data/wiki-game-cache.yaml
+++ b/data/wiki-game-cache.yaml
@@ -31243,6 +31243,8 @@ Command & Conquer (2013):
 'Command & Conquer 3: Tiberium Wars':
   pageId: 484
   steam: 24790
+  steamSide:
+    - 24810
   templates:
     - >-
       {{Game data/config|Windows|{{p|appdata}}\{{LocalizedPath|Command & Conquer 3 Tiberium
diff --git a/src/wiki.ts b/src/wiki.ts
index 1b344beb..d1d4ad7b 100644
--- a/src/wiki.ts
+++ b/src/wiki.ts
@@ -37,8 +37,9 @@ export type WikiGameCache = {
         renamedFrom?: Array<string>,
         templates?: Array<string>,
         steam?: number,
+        steamSide?: Array<number>,
         gog?: number
-
+        gogSide?: Array<number>,
     };
 };
 
@@ -601,10 +602,37 @@ export async function getGame(pageTitle: string, cache: WikiGameCache, client: W
             if (!isNaN(steamId) && steamId > 0) {
                 cache[pageTitle].steam = steamId;
             }
+
+            cache[pageTitle].steamSide = [];
+            const steamSides = template.parameters["steam appid side"] as string | undefined;
+            if (steamSides !== undefined) {
+                for (const side of steamSides.split(",").map(Number)) {
+                    if (!isNaN(side) && side > 0) {
+                        cache[pageTitle].steamSide.push(side);
+                    }
+                }
+            }
+            if (cache[pageTitle].steamSide.length === 0) {
+                delete cache[pageTitle].steamSide;
+            }
+
             const gogId = Number(template.parameters["gogcom id"]);
             if (!isNaN(gogId) && gogId > 0) {
                 cache[pageTitle].gog = gogId
             }
+
+            cache[pageTitle].gogSide = [];
+            const gogSides = template.parameters["gogcom id side"] as string | undefined;
+            if (gogSides !== undefined) {
+                for (const side of gogSides.split(",").map(Number)) {
+                    if (!isNaN(side) && side > 0) {
+                        cache[pageTitle].gogSide.push(side);
+                    }
+                }
+            }
+            if (cache[pageTitle].gogSide.length === 0) {
+                delete cache[pageTitle].gogSide;
+            }
         } else if (templateName === "game data/saves" || templateName === "game data/config") {
             const reparsed = parseWiki(template.toString());
             if (reparsed[0].positionalParameters[1]?.length > 0 ?? false) {