Simple Captcha
by ituples
Simple Captcha is a Minecraft prank mod in which a captcha challenge pops up on a player's screen and must be solved before play continues.
What it does
Two chat commands control when a captcha appears. A player can start a challenge for themselves by typing the first command in the game chat, and a player can send a challenge to another player by typing the second command followed by that player's username. The name in the command is replaced with the real player's name, so the target receives the captcha without warning.
The mod is built for entertainment and interruptions in play rather than security. The author describes it as a joke that adds a playful, slightly challenging pause, meant for friends and for server owners who want a bit of surprise. The author also notes that it is not intended as a real protection against bots or unauthorized access.
Simple Captcha is a client and server mod, so both the server and every player need it. Files are published for Fabric, Forge and NeoForge, for game versions 1.20.1 – 1.21.8. The mod is released under the MIT License and is open source, and its required dependencies are Architectury API and Fabric API.
Key features
Captcha challenge pop-up
A captcha appears on screen and the game stays blocked until the challenge is solved.
Self-triggered challenge
A player can start a captcha for themselves with a single chat command.
Prank command on other players
A second command sends a captcha to a named player, who receives it without warning.
Humorous interruption
The captchas are built to be playful and mildly demanding, so they interrupt play in a humorous way instead of blocking it.
Sound effects from another mod
Sound effects come from the Graveyard Mod, since the author had no other place to find fitting ones.
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 2
Use cases
Pranks between friends
Players can surprise a friend on a shared server by sending them a captcha challenge through the command.
Server fun
Server owners who want a bit of surprise can add the captcha prank to their gameplay.
Who it’s for: Players who enjoy pranks and server owners who want a playful interruption in gameplay. The mod is described by its author as meant for entertainment, not for security.
Questions
Does Simple Captcha need to be installed on both sides?
Which dependencies does Simple Captcha require?
Can Simple Captcha protect a server from bots?
In the catalog
Simple Captcha is one of 2,135 Minigame mods on ModsFinder, and one of 1,454 Minigame mods for Fabric. 17,695 mods support Minecraft 1.21.8.
Similar mods
What the author says
SimpleCaptcha is a Minecraft mod designed for entertainment purposes, adding a playful twist to interactions by introducing captcha challenges as pranks. This mod is perfect for Minecraft players and server admins who want to inject a bit of fun and surprise into their gameplay. This mod is intended for joke purposes…
Official listing
- Modrinth page
- modrinth.com/mod/simple-captcha
- Owner
- ituples
- Published
- 2024-04-12
- Updated on Modrinth
- 2025-09-30
- Facts verified
- 2026-10-15