[dpedu]

This comes up in Minecraft too, and there was a small arms race around it. For the unfamiliar - certain resources in the game are useful and valuable but also rare (diamonds) and requires the player to spend a decent amount of time digging through the ground to find them.

But, since you have the whole game state, you can sift through the data and pinpoint these resources and acquire them quickly and with almost no effort. In multiplayer this is generally considered cheating and is called an "xray" modification to the game client. There are other variations of this hack that involve changing the game's textures to transparent images except for the specific resources you want to find.

Mulitplayer server administrators don't like cheats so they created countermeasures for this. The best example is probably Orebfuscator which "hides" said valuable resources until the player is very close to them.

https://dev.bukkit.org/projects/orebfuscator

[nwiswell]

Can't you still gain an unfair advantage using Bayesian search theory where probability drops to zero at the "revealing radius"?

Or is the "revealing radius" somewhat randomized over time in a way that's invisible to the client?

[Qub3d]

I mean, if you can acquire or otherwise reverse-engineer[0] the game seed, you can also just find resources by loading a local copy and noting the coordinates of ore. For major servers, anti-xray plugins will be installed as due diligence, but most of the anti-cheat efforts are focused on detection, reverting, and banning.

Ultimately, if you have a big enough server to attract serious cheaters, you will (or at least should) have tools that can also detect suspicious behavior based on heuristics (i.e. see if a player mined straight to an ore block). Tools like CoreProtect[1] can help detect and revert this.

Ore obfuscation still works very well, however, for the majority of causal cheaters that just googled "hacked minecraft client" and installed the first result.

One ore obfuscation technique used in PaperMC actually sends intentionally fake data to the user to "muddy the waters"[2].

(I know a lot of this because I help develop a Minecraft server management tool)

[0]:https://www.youtube.com/watch?v=GaRurhiK-Lk

[1]:https://github.com/PlayPro/CoreProtect/

[2]:https://docs.papermc.io/paper/anti-xray