Doom The Dark Ages Size: Complete Guide to Storage Requirements & Install Tips

If you’ve been scrolling through Doom mod forums lately, you’ve almost certainly seen hype for Doom The Dark Ages, the gritty medieval total conversion that turns classic fast-paced shooter action into a brutal, sword-swinging, demon-slaying romp set in a plague-ridden dark age. It swaps plasma rifles for enchanted broadswords, imp fireballs for cursed knight projectiles, and the hellish landscapes of classic Doom for rain-soaked villages, crumbling castle dungeons, and fog-covered graveyards overrun with possessed villagers and demonic knights. I’ve tested three different builds of the mod over the last six months, both on my main gaming PC and my old travel laptop, and one of the most common questions I see new players ask is about Doom the Dark Ages size, and whether it will fit on their already crowded gaming drive without forcing them to uninstall their favorite open world RPG or year-old sports game. This guide breaks down every storage-related detail you need to know, from base install size to extra space for optional high-res texture packs, plus common issues that cause the mod to take up more space than expected, and simple tweaks to keep storage use low without ruining your gameplay.

What Is the Base Doom The Dark Ages Size for Standard Installs?

As of the latest stable public build, the base Doom The Dark Ages size clocks in at 3.2GB for Windows PCs, with Mac and Linux builds coming in at roughly 300MB larger due to extra compatibility files. That’s way bigger than classic Doom’s original 2MB size, but it’s still far smaller than most modern AAA titles, so it will fit even on older budget laptops with limited SSD space. That base size includes all 27 core campaign levels, base weapons and enemy models, default sound design, and the full 45-minute original soundtrack created exclusively for the mod.

I recommend leaving at least 500MB of extra buffer space on your drive when installing, because the mod creates temporary save files and cache data during your first playthrough that can take up extra room for the first few hours of gameplay. That cache will clear out on its own after you’ve played through the first three levels, but not having that extra buffer can cause install errors or crashes on the first boot. If you’re installing it as a mod through a Doom launcher like ZDoom or GZDoom, you’ll also need to account for the size of your base Doom WAD file, which is usually less than 10MB, so it barely moves the needle on total storage use.

Extra Storage Required for Optional High-Res Add-Ons and Patches

Most players don’t stop at the base install, and that’s where Doom The Dark Ages size can grow much larger than the advertised 3.2GB. The mod team releases free optional texture packs, voice line add-ons, and extra mini-campaigns every few months, and those can add a lot of extra storage use if you install every available extra. I always install the high-res texture pack for my 4K monitor, and that adds an extra 4.1GB of storage on its own, bringing the total size up to 7.3GB for a fully upgraded core install.

There’s also a full voice acting pack for all NPCs that adds another 1.2GB, and three released mini-campaigns that add roughly 800MB each. That means if you install every single optional add-on available right now, you’re looking at a total size of around 11GB, which is still pretty manageable for most modern gaming drives. You don’t have to install all of these extras, though. If you’re playing on a low-end laptop or a small portable SSD, you can skip the high-res textures and voice packs to keep the size down, and you’ll barely notice a difference on a 1080p screen. The core gameplay is exactly the same no matter what add-ons you choose to install.

Common Reasons Your Doom The Dark Ages Size Is Larger Than Expected

I’ve helped dozens of players troubleshoot install issues over the last year, and there are a few very common reasons your mod install might take up way more space than the advertised numbers. Most of these are easy to fix, and you don’t have to delete any core content to free up extra room.

  • Old mod version leftover files: If you installed an early beta build of the mod before the full 1.0 release, old unused texture and level files might still be stored in your mod folder even after you update. You can fix this by uninstalling the mod completely and doing a fresh install of the latest stable build, which usually frees up 1-2GB of extra space.
  • Unused mod presets and save files: If you’ve tested multiple character builds or used custom gameplay presets, those save files and preset configs can build up over time. I once found 1.2GB of old test saves in my mod folder that I hadn’t touched in 4 months, and deleting them cut my total install size by almost 15%.
  • Duplicate WAD files: If you use multiple Doom launchers to test different mods, you might accidentally have duplicate copies of the Doom The Dark Ages WAD stored in different launcher folders. Search your entire drive for the mod WAD file to find duplicates, and delete any copies you don’t actively use to free up extra space fast.
Even if you don’t have any of these issues, it’s a good idea to go through your mod folder every 3-4 months to delete old saves you don’t need, especially if you play a lot of custom Doom mods. It’s easy for leftover files to build up without you noticing, and cleaning them out only takes a few minutes.

How to Optimize Storage Use Without Ruining Your Gameplay Experience

You don’t have to sacrifice visual quality or extra content to keep your Doom The Dark Ages size manageable, even if you have very limited storage space. There are a few simple tweaks you can make that cut down on storage use without making the game feel worse to play. First, if you want to use the high-res texture pack but don’t have enough space, you can download the 1080p optimized version of the pack instead of the 4K version. It only adds 1.8GB of extra space instead of 4.1GB, and you won’t be able to tell the difference unless you’re playing on a monitor larger than 27 inches.

Second, you can delete the cutscene files for any mini-campaigns you’ve already beaten, since you probably won’t rewatch them anyway. That usually frees up 200-300MB per completed mini-campaign, with zero impact on regular gameplay. Never delete core WAD or config files to save space, though, because that can cause the mod to crash mid-game or corrupt your save files, and you’ll lose all your progress. If you’re really strapped for space, you can also install the mod on a HDD instead of an SSD. Load times will be 10-15 seconds longer when you first boot up the mod and when you switch levels, but the actual gameplay will be exactly the same, so it’s a great tradeoff if you don’t want to uninstall other games to make room.

At the end of the day, Doom The Dark Ages size is surprisingly small for how much content it packs in, even with all optional add-ons installed. It’s accessible for players with old laptops, small portable drives, and crowded gaming libraries, so you don’t have to drop a ton of money on extra storage just to try one of the most creative Doom total conversion mods released in the last decade. If you follow the tips in this guide, you’ll have no trouble fitting the mod on your drive and avoiding common storage-related issues that can ruin your playthrough. I’ve been playing it regularly for six months, and I still find new little details in the levels every time I boot it up, so it’s more than worth the small amount of storage space it takes up.