This app was mentioned in 2 comments, with an average of 2.00 upvotes
Ah, I think I have the perfect game for you!
Here's a description of the game!
Unfortunately I haven't been able to find a browser version, however here is an app on google play you can download to play it! (if anyone finds a browser version please share!)
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Spoiler: It's tri-D chess, a chess variant either created by or at least made popular by Star Trek TOS. This suggestion is only half a joke, because it is actually quite fun and does feel like a modern, updated, and exciting version of chess while remaining true to the original game. It uses multiple boards and adds an up-down element to piece movements.