I'm wanting to introduce a puzzle for the characters to solve that will require many sessions to complete. The concept is this would be more of a downtime activity adding a little fun to the larger events of the campaign. They'd receive/find tiles through various main and side quest and encounters. I'd want them to seem rather inaquous at first and only after someone meditidates on the tiles would they would learn each tile provides some minor bonus/buff. The tiles could also be combined in a specific order to create one really cool relic granting them a greater bonus/buff.

I'd make a 3d prop to give to the players which have some unknown runes on them to look cool.

I'm worried about the puzzle being too complex and the players won't pick up on what to do with it. My solution for this is:

• Have an NPC encourage players to meditate with the tiles to see if they can learn about them
• As DM I'll explain one person can meditate on the item once per day.
• After a character meditates on the item I'd have them make a skill check roll and provide some information on the tiles, history, lore, use, power, etc.
• When they have a few tiles the meditation would reveal that they can be put together.
• As DM I'll explain one person can try one combination once per day as they meditate on the tiles.
• I'd then provide some insight into what pieces were correctly placed and when they have all the pieces.

Thoughts?