I do remember a proposal with basically this idea a long while back but not the details.
I think my main issue with it is that Roblox is mostly a platform for YOUNG kids and I don't think kids are our target demographic for splinterlands.
With that said, if we funded and made a game that creates a ton of revenue that the Dao can then spend buying SPS / DEC, funding more developers or other team members, etc it could still be a gold mine and that much needed revenue stream so I'd be open to hearing a fully fleshed out plan for this.
Yeah I agree the target audience isn't quite right. But it's tomorrow's audience eh? ;) Plus they spend tons of their (parents') money.