[larsiusprime]

There's an entire economic school of thought dedicated to railing against the specific problem of sitting on physical land just to keep it out of use until someone else pays you a higher price:

https://en.wikipedia.org/wiki/Georgism

[WorldMaker]

It's fun to note the game Monopoly was designed as a teaching exercise for Georgism (it's meant to be awful; it's designed to show the unfairness of existing landholder/landlord structures), though the pack in rules (for somewhat obvious reasons) no longer include the pro-Georgism text and counter-rules that illustrate that the game is far more boring, but quicker and more fair under a Georgism-like model.

[larsiusprime]

Indeed! I assume you’re referring to “The Landlord’s game” by Elizabeth Maggie? (The earlier incarnation)

[WorldMaker]

Quite. The original rules document is in the public domain now and is a fascinating read of turn of last century economic thought that is still relevant today (as this larger discussion shows). Maybe someone could do a quick interesting reskin for "The Domainparker's Game".