

Each weapon has 2 mod slots, and you'll ideally want to unlock all 13. Mod Bots are essential singular upgrades to your guns that appear in most missions.(You can live without these, but they'll make subtle aspects of the game easier.) Praetor Suit Tokens are the least-vital but still essential currency for upgrading your armor, enhancing your Frag Grenade, Ice Bomb, defenses, map, and mobility.You can activate Cheat Codes when you replay missions to get infinite lives or ammo, among other things.Codex Pages explain the lore of the universe, which is hard to follow as you play.Purely cosmetic, Skins change the appearance of your Doomguy and don't impact gameplay.Sentinel Crystals > Mod Bots > Praetor Suit Tokens > Cheat Codes > Codex Page > Skins You should prioritize the different collectibles like this:

Prioritize these three Sentinel Crystals first in the Fortress of Doom Bethesda Some of the best stuff is hidden lower in the ship. The in-game map is extremely helpful and shows everything that's available, but don't be tempted by the first doors you find. Most are locked behind doors requiring two Sentinel Batteries to access, but some are sitting out in the open and are accessed as part of the story. The Fortress of Doom has an assortment of collectibles: Mod Bots, Codex Pages, Cheat Codes, Sentinel Crystals, Praetor Suit Tokens, and Skins.

Read our review: Doom Eternal review: Mayhem is the only item on the menu, and it's glorious You should stumble upon many of these Sentinel Batteries naturally in your travels, probably more than you'll truly need, especially if you complete the straightforward Mission Challenges that have you get a certain number of kills, often with a specific weapon against a particular enemy. "Sentinel Batteries can be found in Missions or earned by completing all three of the Mission Challenges." "Insert Sentinel Batteries into sockets within the Fortress of Doom to unlock items and power up parts of the fortress," the in-game tutorial reads. Unlocking the wrong rooms is perhaps the biggest mistake you can make in the entire game.Įarly in Doom Eternal, you'll discover a Sentinel Battery and use it to unlock the Ice Bomb. More importantly, it's Doomguy's mancave, which contains some of Doom Eternal's best unlockable secrets.Īs you discover Sentinel Batteries throughout the game, you can bring them back to the Fortress to unlock various doors to upgrade your character. When Doom Eternal begins, Doomguy arrives at Earth in one of the most rad spaceships ever: A floating castle called the Fortress of Doom that manipulates space "through an unknown process involving Sentinel energy." In the lore of Doom, it's a command station used by Sentinels for military operations with Argenta design and Maykr technology.
