Advertise
by AtiredDev
Advertise is a Fabric client mod for 1.21.1 that puts ad banners, pop-ups and a smiling dog into the game, and it makes the experience steadily worse.
What it does
Once installed, the game shows advertisements in layers, and the mod lets the player set how often they appear. Advertisements can be swatted away with the mouse inside the inventory, and some of them fade out after a short time. A smiling dog also appears among the ads.
The effect is meant to grow as a run goes on: the mod notes that the Nether makes things even worse, and the End is the final stage of the escalation. Only the client needs the mod, since the server can run without it. The mod depends on Fabric API and is released under the MIT License, but it is not open source. Files are published for Fabric only, with version 0.1 for 1.21.1 as the single release.
Key features
Layered advertisements
Ads stack on top of the screen, so the game becomes progressively harder to read as more of them open.
Adjustable ad rate
A rate setting controls how frequently advertisements show up, from occasional to constant.
Swat with the mouse
Advertisements can be cleared by clicking them away with the mouse while the inventory is open.
Fading and a smiling dog
Some advertisements fade out on their own, and a smiling dog appears among them as a recurring visual.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Cursed playthroughs
Players who want an intentionally annoying session can turn the ad rate up and play through the Nether and End with the layers in place.
Comedy videos
Creators filming reactions to absurd interfaces can use the rate setting and the dog to produce a recognizable joke.
Who it’s for: The mod suits players looking for a cursed or joke experience on Fabric for Minecraft 1.21.1. Because it only changes what the client shows, it can be added to a single-player or multiplayer client without any server setup.
How it compares
Why Not Ads is another ad-themed option, but it covers Fabric and NeoForge for 1.21.8 and is not open source. Worse Maces and Worse Swimming come from the same author family of worsening mods, with Worse Maces built for 1.21.8 and Worse Swimming built for 1.20.1 – 1.21 as a server-side only mod.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Advertise | Fabric | 1.21.1 | Client required, server optional | 2026-02-20 |
| Why Not Ads | Fabric and NeoForge | 1.21.8 | Client and server | 2026-02-15 |
| Worse Maces | Fabric | 1.21.8 | Client and server | 2025-07-31 |
| Worse Swimming | Fabric | 1.20.1 – 1.21 | Server-side only | 2024-08-07 |
Questions
Does Advertise need Fabric API?
Does the server need Advertise?
Which Minecraft version does Advertise support?
In the catalog
Advertise is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from AtiredDev
Similar mods
What the author says
It gets worse in the nether and even worse at the end of the game. ## The MISC: - You can use /ad_rate to set the rate of the advertisements - You can swat out advertisements out of the way with your mouse when your inventory - Smile dog - When you're paused, the ads fade out.
Official listing
- Modrinth page
- modrinth.com/mod/advertise
- Owner
- AtiredDev
- Published
- 2026-02-20
- Updated on Modrinth
- 2026-02-20
- Facts verified
- 2026-10-15