Hi nathaniel. Roll20 is made to be 'system agnostic' and works with any tabletop games. You can play BattleTech and there actually are groups playing Mech games. Only a fraction of games that are taking place in Roll20 across the months, are offering slots in the LFG search at any given time. Try using the Matching Keywords field to search for any games, genre or game system title on-offer in LFG that isn't already in the drop-down. Or feel free to start your own group and gather players for it! Wiki docs for this, <a href="https://wiki.roll20.net/Looking_for_Group#Narrow_Y" rel="nofollow">https://wiki.roll20.net/Looking_for_Group#Narrow_Y</a>... The Roll20 Marketplace has quite a few art packs made for this kind of gaming, (like these examples pictured / link below), <a href="https://marketplace.roll20.net/browse/search/?keyw" rel="nofollow">https://marketplace.roll20.net/browse/search/?keyw</a>...