Last seen Plugin

[mild cape]

The mod will be for Fabric 1.21.4 with potential for future updates.

The mod will do the following:

While I am on a Minecraft server, it will track players that I see and when I last saw them.

It will store this per-player and per-server.

When a player joins a server that I am on, if I have seen them before, it will show me when I last saw them, along with how long ago that was. This could be prepended/appended to the join message or shown as a separate chat message.

It is highly configurable (placeholder formatting, text formatting, and other useful options you see fit).

Expected Behaviour:

I am playing on Server A, and User123 is also online.
At 15:34 on April 18, 2025, User123 leaves the server while I am still connected.
This time is saved as the last time I saw User123 on Server A.

Later, on April 21, 2025 at 19:08, I rejoin Server A and User123 also joins.
The mod detects I last saw them on April 18 at 15:34, and prints a message like:
[Last Seen] User123 was last seen 3 days, 3 hours, and 34 minutes ago (18 Apr 2025, 15:34)

Multi-server Example:

Now suppose I switch to Server B on April 22, and User123 also joins Server B while I am online.

Since I have never seen User123 on Server B before, the mod prints a message like:
User123 joined the game. (First time seen on this server)

@rocky pelican

[rocky pelican]

!!cheats

[dusty gate]

We do not support hacked clients, cheats, or modifications that are intended to give you the upper hand in a server, competitive or otherwise.
See rule 1 in #welcome and the Discord TOS: https://discordapp.com/terms

[rocky pelican]

Player positions are only sent to the client if the player is within render distance. This mod can only fully function if it is client and server-side

[mild cape]

Can the mod get the player list from the join message/tab?

[rocky pelican]

the player list is synced with the client, not their positions

[mild cape]

Just grab the name/UUID of who’s online and store in my client/files when they disconnect?

Is it still not possible?

I hope this question does not bother 🙏

[rocky pelican]

yes, you can store the positions of players in your render distance, but that mod would violate Mojang's EULA and making it would violate discord's TOS

[mild cape]

Ah does Mojang cares about client side mods

Ah anyways thank you for your time

I was expecting someone to make that mod but the answer is also helpful I appreciate it

[iron lynx]

thats not cheating at all though

the mod doesnt have anything to do with player position

it just checks to see if they were last online

from the player list

[rocky pelican]

I just re-read the request and wow did I misunderstand what the request was (shame on me for attempting to multitask).

[iron lynx]

maya

[rocky pelican]

@mild cape this is completely fine with the EULA and TOS. Please ignore everything I said

[royal solar]

@mild cape Here's a basic version, I haven't tested it much though. https://github.com/tommyrobot666/player-login-logger

[mild cape]

thank you, let me check

[mild cape]

@royal solar ah can this mod work in 1.21.4?

[royal solar]

Not yet, but i'm working on an update

[mild cape]

I have made a fork and updated

https://github.com/ZenithKing5/player-login-logger
You can review the code if you want.

[royal solar]

I've finished the update now. I'm going to implement the changes you added in your fork.

[royal solar]

I've implemented your changes

[mild cape]

sounds good 👍

[royal solar]

The mod now has text formatting

[mild cape]

yay!

[royal solar]

I've also released it on modrinth, it's still under review though. https://modrinth.com/mod/last-seen-message

[mild cape]

sounds good

modrinth usually takes about 2-3 days to review your mod/plugin