Doom engine source port bundled with Freedoom 1 & 2
About this app
GZDoom is a feature centric port for all Doom engine games, based on ZDoom, adding an OpenGL renderer and powerful scripting capabilities.
In addition to Doom, GZDoom supports Heretic, Hexen, Strife, Chex Quest, and other games based on the Doom engine.
The Freedoom project aims to create a complete free content game based on the Doom engine.
Combined with the engine, Freedoom is also compatible with game modifications (“mods”) made for the original Doom games, made by Doom fans and artists over the decades.
In addition to Freedoom 1 & 2 WADs, this app comes with more level packs: Sigil, 10 sectors and 10 sectors part 2.
Note: this is an unofficial port of GZDoom and FreeDoom to android and it's not affiliated with these projects.
Licensed under GPL-2.0-only.
What's New in v0.4.3
Imported from the F-Droid repository index.
Version history
May 14, 2024 · 37.1 MB · Android API 21–26 · code 20
Imported from the F-Droid repository index.
SHA-256 84023dcb1fe1aebccb854e9cf4ebe2fe435ccf61a5a873af4e52235663fdad30
Feb 17, 2021 · 36.6 MB · Android API 21–26 · code 19
Imported from the F-Droid repository index.
SHA-256 8a418b974e8c8bfec3357ad96c1380eb6ac22eee5ebbba1b5227437d87aa05bb
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be net.nullsum.freedoom is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 0.4.3 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Freedoom first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Freedoom, and a listing is removed when the evidence for it stops holding up.
Get Freedoom
Every source we list for net.nullsum.freedoom is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
84023dcb1fe1aebccb854e9cf4ebe2fe435ccf61a5a873af4e52235663fdad30
Signing certificate
74f81fad48202cee84d2bd74f2a25325350989d1d5caa998ee8454178a2ce31f
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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