diff --git a/customize.html b/customize.html
index 486b791..90004aa 100644
--- a/customize.html
+++ b/customize.html
@@ -18,9 +18,9 @@ redirect_from:
 <h2>Popular subgames</h2>
 
 <ul>
-  <li><a href="https://forum.minetest.net/viewtopic.php?f=15&amp;t=9196">Dreambuilder</a> - A building based game, includes many building materials.</li>
-  <li><a href="https://forum.minetest.net/viewtopic.php?f=15&amp;t=12824">Carbone NG</a> - Focuses on “optimization, game balance, fun and intuitiveness.”</li>
-  <li><a href="https://forum.minetest.net/viewtopic.php?f=15&amp;t=9036">Big Freaking Dig</a> - “Get as many ores as possible, while fighting mobs and creating tools from new materials.”</li>
+  <li><a href="https://forum.minetest.net/viewtopic.php?t=9196">Dreambuilder</a> - A building based game, includes many building materials.</li>
+  <li><a href="https://forum.minetest.net/viewtopic.php?t=12824">Carbone NG</a> - Focuses on “optimization, game balance, fun and intuitiveness.”</li>
+  <li><a href="https://forum.minetest.net/viewtopic.php?t=9036">Big Freaking Dig</a> - “Get as many ores as possible, while fighting mobs and creating tools from new materials.”</li>
   <li><a href="http://wiki.minetest.net/Games/Tutorial">Tutorial</a> - “Teaches the fundamental basics of Minetest”</li>
 </ul>
 
@@ -49,12 +49,12 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
   <div class="col-sm-6">
     <h3>Building</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2787">Farming Plus</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2041">Home Decor</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=509">More Blocks</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=5682">Quartz</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2984">Streets</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=11&amp;t=6099">Torches</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2787">Farming Plus</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2041">Home Decor</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=509">More Blocks</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=5682">Quartz</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2984">Streets</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=6099">Torches</a></li>
     </ul>
   </div>
 
@@ -62,12 +62,12 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
     <h3>Map generation</h3>
     <ul>
       <li><a href="https://forum.minetest.net/viewtopic.php?t=9231">Bedrock</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=7656">Ethereal</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=11&amp;t=549">More Ores</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=4394">More Trees</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=5790">Nether</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=11&amp;t=3898">Plantlife</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=11&amp;t=2290">Snow Biomes</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=7656">Ethereal</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=549">More Ores</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=4394">More Trees</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=5790">Nether</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=3898">Plantlife</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2290">Snow Biomes</a></li>
     </ul>
   </div>
 </div>
@@ -76,17 +76,17 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
   <div class="col-sm-6">
     <h3>Environment</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=11&amp;t=2807">Ambience</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=5245">Weather</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2807">Ambience</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=5245">Weather</a></li>
     </ul>
   </div>
 
   <div class="col-sm-6">
     <h3>Mobs</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=629">Animals Modpack</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=8638">Creatures</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=3063">Simple Mobs</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=629">Animals Modpack</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=8638">Creatures</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=3063">Simple Mobs</a></li>
     </ul>
   </div>
 </div>
@@ -96,17 +96,17 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
     <h3>Tools</h3>
     <ul>
       <li><a href="https://forum.minetest.net/viewtopic.php?t=628">Mesecons</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=11&amp;t=2155">Pipeworks</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2538">Technic</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2155">Pipeworks</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2538">Technic</a></li>
     </ul>
   </div>
 
   <div class="col-sm-6">
     <h3>Transport</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2451">Carts</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=4877">Travelnets</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=4086">UFOs</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2451">Carts</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=4877">Travelnets</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=4086">UFOs</a></li>
     </ul>
   </div>
 </div>
@@ -115,21 +115,21 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
   <div class="col-sm-6">
     <h3>Player effects</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=4654">3D Armor</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=4870">Achievements</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=6342">Better HUD (and hunger)</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2656">Item Drop</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2805">Throwing</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=4654">3D Armor</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=4870">Achievements</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=6342">Better HUD (and hunger)</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2656">Item Drop</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2805">Throwing</a></li>
     </ul>
   </div>
 
   <div class="col-sm-6">
     <h3>Inventory</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=5641">Crafting</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=2334">Craft Guide</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=6204">Inventory++</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=3933">Unified Inventory</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=5641">Crafting</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=2334">Craft Guide</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=6204">Inventory++</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=3933">Unified Inventory</a></li>
     </ul>
   </div>
 </div>
@@ -138,9 +138,9 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
   <div class="col-sm-6">
     <h3>Maintainance</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=7239">Areas</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?id=572">WorldEdit</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=9&amp;t=9315">Xban2</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=7239">Areas</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=572">WorldEdit</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=9315">Xban2</a></li>
     </ul>
   </div>
 </div>
@@ -159,9 +159,9 @@ More subgames are available <a href="https://forum.minetest.net/viewforum.php?f=
   <div class="col-sm-6">
     <h3>Popular Texture Packs</h3>
     <ul>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=4&t=9564">PureBDTest</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=4&t=1583">HDX Textures</a></li>
-      <li><a href="https://forum.minetest.net/viewtopic.php?f=4&t=4990">PixelBOX</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=9564">PureBDTest</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=1583">HDX Textures</a></li>
+      <li><a href="https://forum.minetest.net/viewtopic.php?t=4990">PixelBOX</a></li>
     </ul>
   </div>
 </div>
diff --git a/development.html b/development.html
index 43e6aed..e6e3084 100644
--- a/development.html
+++ b/development.html
@@ -173,7 +173,7 @@ Minetest is distributed as an engine, combined with a couple of games. Upstream
 </p>
 
 <p>
-  Profits are used as donations for something related to Minetest. <a href="http://forum.minetest.net/viewtopic.php?id=4437" title="http://forum.minetest.net/viewtopic.php?id=4437">Forum thread</a>.
+  Profits are used as donations for something related to Minetest. <a href="http://forum.minetest.net/viewtopic.php?t=4437" title="http://forum.minetest.net/viewtopic.php?t=4437">Forum thread</a>.
 </p>
 
 <br>
diff --git a/downloads.html b/downloads.html
index 9bee03e..e6fd6a4 100644
--- a/downloads.html
+++ b/downloads.html
@@ -59,7 +59,7 @@ redirect_from:
 <p>OS X 10.8 or later is recommended.</p>
 
 <ul>
-  <li><a href="https://forum.minetest.net/viewtopic.php?f=3&t=9190">Stable OS X builds</a></li>
+  <li><a href="https://forum.minetest.net/viewtopic.php?t=9190">Stable OS X builds</a></li>
   <li>Using <a href="http://brew.sh/">Homebrew</a>? <code>brew install homebrew/games/minetest</code> <em>(unofficial)</em></li>
 </ul>