Sundered: Eldritch Edition

This is not a guide per se, but rather some useful information that will help you save a lot of time with this game.

The game's achievement list asks you to defeat 3 different end bosses, hence it may look like you need to complete 3 playthroughs of the game. However, I can now confirm that you can skip 1 playthrough, by getting both "Defeat Nyarlathotep" (The Crawling Chaos) and " Defeat Nyarlathotep & The Shining Trapezohedron" (Beacon of Hope) in the same playthrough.

During your Resist playthrough (when you destroy elder shards instead of corrupting them with new abilities), go through the game as usual, but only destroy 6 of the 7 shards. When you open the final portal, you will face Nyarlathotep only, and get the neutral ending. Then, after the credits, reload your game. You will have the ability to restart just before the end boss. You can now safely destroy the last shard (granting you the Resist achievement), and open the final portal. You will face Nyarlathotep followed by Trapezohedron, and will get the good ending.