I think I saw somewhere a game table that allows sims play to tabletop roleplay games (like Dungeons and Dragons.) There were stuff like dragon figures, books, roleplay screens and dices on the table. Maybe it was custom version of Don't wake llama game. Does anyone understand what I am meaning? I am not meaning the Sims 4 stuff because I think I saw the game before Ts4. Maybe the website was written something else language than English. I think there were russian or asian alfabets.

Couldn't find any for TS2, but could find one here on MTS for TS3. The creator didn't use any russian or asian alphabets though.
I know of a custom version with a yeti instead of a llama, but not any other custom versions. It would be really cool if we could find it, to be honest.

ATS has a Sims 3 one here, but it's a donators' gift. https://aroundthesims3.com/objects/...obbies_04.shtml

Your post reminded me of a WCIF eulaliasims answered a while back on tumblr:
https://eulaliasims.tumblr.com/post...m-your-game-its

Deco books, roleplay screens and dices can be found here:
https://gardenofshadows.org.uk/gard...46701#msg746701
This post has a dragon figure:
https://hat-plays-sims.dreamwidth.o...l?thread=844597

To place the decor you could use OMSPs:
https://modthesims.info/d/325570/fu...-ever-been.html
or Shiftable Everything:
https://modthesims.info/d/670142/sh...p-and-down.html

In case you would like to use another table than the one that came with Don't wake the Llama you could use an invisible recolour:
https://modthesims.info/d/382018/in...able-games.html
and place the table of your choice underneath.

(I know you asked for DnD stuff but just in case I’ll list all the other board game deco I know of):
https://mustluvcatz-reloaded.tumblr...-nautical-stuff
https://sims2.aroundthesims3.com/ob...dvent_2015.html
https://jacky93sims.tumblr.com/post...-for-the-sims-2

It's probably not the exact thing you were looking for but I hope this can tide you over until you or someone else can find the exact post you remember

picture source:
https://eulaliasims.tumblr.com/post...ng-relationship

I am not sure are these those I saw before but they are quite cool and would maybe be useful also.

I didn't find the original one that you were after, but I had actually already converted the Sims 3 ATS board for my own personal use. As it is a donation gift I wasn't going to upload it, plus I hadn't given it new GUIDs, so it was overwriting another game. Also, I didn't really think that anyone would be interested.

But I had another go at it and added the map from the Sims 3 DnD board on MTS and gave it unique GUIDs, so it should work now. You can add deco minis etc.

http://www.simfileshare.net/download/4534914/