
Baldi's Basics The Ultra Decompile
What is this decompile?
This decompile is a place with a lot of content built into the classic version of Baldi's Basics. It's like playing classic but with all of the new content around (remaining its classic style).
WHERE CAN YOU PLAY IT? Every main desktop platform and even Android! Heck, you can even play in your browser with the possibility of playing on iOS (instructions here).
What kinds of content are inside?
- A second or third floor. An elevator system.
- Adjustments you can make to spice things up.
- MULTIPLAYER! Competitive (playing as Baldi) and Cooperative (beating Baldi with other players).
- Carryovers from other Baldi's Basics games (BIRTHDAY BASH!, Camping Field Trips, etc.)
- Fresh new modes (Hide & Seek with Baldi and Multiplayer).
- Play between two schoolhouses (Classic and Grand Opening).
- 7 Unique items.
- 10 endings (Classic and Grand Opening).
- Unique and improved mechanics.
- And a lot more!
Feel free to learn more. There's a bunch of content waiting for you in this mod.
DISCLAIMER: This decompile has tons of features that separate itself from Plus. It's never intended to be the original game. Although it does have Plus items and characters, it's built through Classic with legal functions, and no core features are implemented. If there's any concern or anything not allowed in this decompile, please reach out and I'll comply.
Is this the end of the mod?
Well, technically yes. This mod has been in development for five years, and a lot has changed throughout time. Due to my demotivation, it's best to leave this game in its current state. Remember, the source code is available below if you want to continue yourself. Don't worry, you can still download the mod and chat with the community.
As of now, I still plan to update the Grand Opening schoolhouse. However, there won't be anything new until like 2026, when I'll get motivated to finish that again.
Want to see old versions?
Here's an archive of every version that I (or the community) had saved.
All the way from V1.0 to V3.0.4 (Windows & Android). Some versions were skipped as I didn't have the files. Do not worry about V1.4's crashing issue, as that has been resolved.
Other Links
GameBanana: https://gamebanana.com/mods/53042
GameJolt: https://gamejolt.com/games/bbtud/513238
Discord: https://discord.gg/TNudpDTKPr
Have fun!
Updated | 1 day ago |
Status | Released |
Category | Game mod |
Platforms | HTML5, Windows, macOS, Linux, Android |
Rating | Rated 4.8 out of 5 stars (115 total ratings) |
Author | SeenWonderAlex |
Genre | Adventure |
Made with | Unity, GIMP, Audacity, FL Studio |
Tags | Baldi's Basics, Multiple Endings, Singleplayer |
Average session | About a half-hour |
Languages | English |
Inputs | Keyboard, Mouse, Touchscreen |
Accessibility | Subtitles, Configurable controls |
Multiplayer | Server-based networked multiplayer |
Links | Discord |
Download
Install instructions
For Browser & iOS:
If you're on an iPad or iPhone, you will be directed to open this link and add it to your Home Screen to start playing! If you do not know how to add the game to your home screen, here are the instructions!
If you're NOT on an iPad or iPhone, and rather using a laptop such as a Chromebook, you can press the "Run mod" at the top of the page. It'll load, and you can start playing right away! However, for better performance and the ability to play offline, you could install the game from the same link above, which the browser will prompt to install on your device.
For Windows:
Download Windows, then extract the zip file. Double-click the Baldi's Basics TUD executable and enjoy!
For Mac:
Download Mac, then double-click the Baldi's Basics TUD app. You may be prompted that you can't launch it. Just allow it in settings under Privacy & Security. Relaunch it and enjoy!
For Linux:
Download Linux, then extract the zip file. Right-click and access the .x86_64 file properties. Under permissions, check "Allow executing file as program" in order to run the game. Once applied, double-click the Baldi's Basics TUD executable and enjoy!
For Android:
Download and run the Baldi's Basics TUD installer. You may be prompted that "your device is not allowed to install unknown apps from this source". Just go to settings and allow the source you installed it from. Then tap on Baldi's Basics TUD installer again. Verify the game using Play Protect (which should pass) to finish the installation. When installed, tap on the app and enjoy! It's recommended to turn off Unknown Sources after installing.
Development log
- Quick Compatibility Update (Now Support Newer Devices)Apr 05, 2025
- Source Code of BBTUD IS NOW OPEN!Dec 14, 2024
- Android Update!Oct 05, 2024
- Captions Fixed! [3.0.4]Aug 06, 2024
- SECOND PATCH IS HERE (3.0.3)Aug 05, 2024
- Patch 3.0.1Jul 06, 2024
- THE OFFICIAL V3.0 UPDATE! (5 Year Anniversary)Jun 29, 2024
- V3.0 AnnouncementJun 20, 2024