Finished the first campaign of HoMM3, 'Restoration of Erathia'. I thought I had finished it over the weekend but I somehow missed the bonus scenario that becomes available once you finish the main storyline. It has 3 pretty short and easy levels that tell a story set in the aftermath of the main campaign's storyline. It was pretty fun and the last level had an interesting mechanic: there's a wood shortage so every turn you lose wood to, uhm, 'poachers' of some kind. This makes it very difficult to upgrade a town to unlock the better creatures. Even worse, the winning objective is to build a capitol in your starting city, which \requires a ton of resources including wood.
Thankfully there are wood deposits lying around the map, but you have to use them the moment you claim them otherwise they'll go to waste. But you can trade other resources/gold for wood at quite a loss if need be.
It's been a fun journey and I'm looking forward to start with the first expansion, Armageddon's Blade. But that will have to wait until I've made a bit more progress elsewhere in my backlog :P