But those games are running on hardware that you control. You therefore also control what version of the ledger the games can observe, and you can choose to sho

But those games are running on hardware that you control. You therefore also control what version of the ledger the games can observe, and you can choose to show it an old version or a fork that has been mined with a tiny amount of PoW, so things like activation counters wouldn't actually give you the guarantees you are claiming. Perhaps for online gaming, the peers could require proof of ownership via the central ledger. But I would imagine that everyone would just apply a crack to disable those checks, because spending crypto fees whenever you join a server just to protect the IP rights of a defunct company is such an overkill solution, and frankly I find the use case highly contrived. I don't think it is realistic to assume that gamers will accept that what used to be a simple license check now involves downloading and verifying gigabytes of ledger history. Just use off-ledger verifiable receipts. If Ubisoft goes under and sells off its IP, then the buyer should be legally obliged to run a similar ownership service with the digital receipt being the proof of ownership OR release the games to public domain without license checks.