If you’ve been stuck grinding Doom the Dark Ages Chapter 16 since the 2026 game update dropped last month, you’re far from alone. Tons of players have posted about getting stuck on the Wraith King boss fight, missing hidden collectibles, or missing the criteria to unlock the chapter’s highly anticipated alternate ending. I spent 12 hours testing every route, mechanic, and build when the patch first went live, so I’ve put together all the tips you need to beat the chapter first try and unlock every reward available.
Key Changes to Doom the Dark Ages Chapter 16 in the 2026 Patch
If you played a beta version of Chapter 16 before the full 2026 release, you’ll notice a lot of small tweaks that make the chapter feel more balanced for all playstyles. The devs adjusted boss health to scale more fairly for solo players, fixed a game-breaking glitch that made the final cutscene not trigger for co-op groups, and added two new secret collectibles that weren’t available in early access. 2026 patch increased the drop rate of legendary runes by 30% for solo players, so you don’t have to grind the same section 10 times just to get a usable upgrade. They also added new voice lines for the side characters that give subtle hints about where to find hidden chests and secret areas, so make sure you don’t skip dialogue if you’re hunting for 100% completion.
Step-by-Step Wraith King Boss Fight Strategy
The Wraith King is the final boss of Chapter 16, and he’s easily the biggest roadblock for most players. He has three distinct phases, each with unique mechanics that can wipe your run if you don’t know what to expect. Before you even reach the boss arena, make sure you have the following must-have items to make the fight 10x easier:
For phase 1, the Wraith King will stay on the ground and swing his giant axe, while summoning 2-3 shadow minions every 30 seconds. Don’t waste crossbow ammo on the minions: use fire potions or the environmental fire traps around the arena to take them out in one hit. Phase 2 of the Wraith King fight has a one-hit kill attack if you get caught outside of cover for more than 3 seconds, so stick to the stone pillars on the edges of the arena and only peek out to shoot when he finishes his attack animation. You can check the official 2026 Chapter 16 balance update notes for full details on his attack damage values if you want to tweak your build to tank more hits. For phase 3, he’ll stop summoning minions but move twice as fast. Wait for his charge attack, dodge at the last second to stun him, then unload all your crossbow ammo into his glowing chest weak spot to finish him off fast.
Hidden Collectibles and Alternate Ending Unlock Guide
Most players beat the Wraith King and think they’ve finished Chapter 16, but there’s a whole alternate ending and exclusive legendary reward you can unlock if you collect all three hidden Soul Shards scattered across the map. The first shard is under the floorboards in the guard barracks section: just break the cracked wooden floor with your melee weapon to reach the small crawl space it’s hidden in. The second shard is in a secret room behind the bookshelf in the wizard’s study: interact with the red leather book on the top shelf to open the hidden door. The third shard is dropped by the optional Rat King mini-boss in the sewers, which you can access by blowing up a pile of rubble near the blacksmith’s shop with a dynamite stick you find on his workbench. You only have one chance to collect the soul shards per playthrough, so don’t rush through the early areas of the chapter. If you collect all three before fighting the Wraith King, you’ll trigger the alternate ending where you use the shards to purify the village’s curse instead of just escaping the castle. You’ll also unlock the exclusive Wraith Slayer character skin, which is only available to players who complete the alternate ending in 2026.
Solo vs Co-op Play Tips for Chapter 16
Chapter 16 works great for both solo and co-op play, but there are a few key differences you should know about before you start your run. If you play solo, you get a 30% higher loot drop rate, and you don’t have to worry about teammates taking your collectibles or messing up boss mechanics. The only downside is that you have to handle minion clearing, damage dealing, and healing all on your own, so I recommend spec-ing into stamina regeneration to make dodging attacks easier. If you play co-op with 2-3 players, boss health scales up by 60% per extra player, but you can split roles to make the fight much smoother. Have one player focus on clearing minions, one focus on dealing damage to the boss, and one carry extra health potions to heal the group. If you play co-op, make sure all players collect the soul shards individually to unlock the alternate ending for everyone. Crossplay is fully enabled in the 2026 update, so you can team up with friends on any console or PC platform with no region locks or lag issues.
Whether you’re playing solo or with friends, Doom the Dark Ages Chapter 16 offers some of the most fun, challenging content added to the game in 2026. With the right items, knowledge of boss mechanics, and a little patience to hunt for hidden collectibles, you’ll beat the chapter first try and unlock every exclusive reward available. I’ve beaten the chapter 7 times across both solo and co-op runs, and the alternate ending is 100% worth the extra time spent looking for the Soul Shards. If you have any other tips for beating the chapter, drop them in the comments below to help other players out.
