Looking at some online gaming options, Tabletop Simulator is half price on Steam at the moment.

They have the “4 pack” which I guess gives you 3 extra keys to unlock additional games, for £22.49.

https://www.fanatical.com/en/game/tabletop-simulator-4-pack

Is it worth for some lockdown gaming?

I’ve not played with it myself but it’s supposed to be well regarded, there are a lot of free games on there as well as paid-for content, some official adaptions and some homebrew stuff.

There are other alternatives, Tabletopia and a few others. Again, I’ve not really looked at them as I’ve already got more “to play” games than I know what to do with.

It’s not great with a controller but works well on PC.
Doesn’t work very well if you have 2+2 setup, you’d want to be on separate systems.

Only played a couple of games so far but others that play a lot more seem to rate it.

Tonnes of games available in the workshop & only the host needs them (I’m not sure if that’s the same for paid for ones).