Fun, thoroughly enjoyable game, but doesn't feel quite right on PC.
OTTTD is mainly a tower defence/rts/rpg hybrid. You build your towers in fixed spots, level up and unlock abilities for your characters, then mess up a bunch of enemies.
First the positive. It is a very quirky, characterful game. I've smirked on a number of occasions when the next bad guy starts walking down the paths. If undead teddy bears, giant flying shark fortresses, and 'shanktopuses' are your thing, then get this game!
Music and sound effects are good, as is the voice acting. Didn't turn me off or make me cringe, which as a sound designer myself, is a really good thing.
The whole atmosphere is great, and whoever wrote all the little jokes on the items/upgrades/achievements needs a pat on the back.
And of course, gameplay is smooth, easy to get the hang of, and quite intense in the later stages.
So, it all sounds really good, right? Well it's important to know that this is technically a port of a mobile game. I was aware when I bought this, and it certainly shows, but it's not necessarily a bad thing...in places.
For example, it is easy enough to get coins and medals (the respective currencies) in game, and the option for microtransactions is absent (or at least, I couldn't see it). This is obviously a big thumbs up, although it makes the fancypants versions for sale kind of obsolete unless you're into the extras.
However, when a character dies, you have a time limit before you can use them again. You can speed this up at the cost of a medal. To be honest, I wasn't that bothered by it initially, as earning medals is easy, but that changed once I unlocked the first endless level. If your characters die, they gain 0 experience AND you have to wait for them to revive. Getting no exp from a 15+ wave run is one thing, but then having to wait 45 minutes (without using a medal) to revive is another. Not cool.
NOTE: After playing it a little longer, this no longer becomes an issue, as you'll have a huge surplus of medals.
Another example would be that, in order to pan across the stage, you actually have to click and drag, like using your finger on a tablet. Not a bad thing, but I'm more used to the rts-esque camera-follows-the-mouse deal.
There's also little in the way of settings customisation, although if you bought this game with that in mind, then I don't know what you expected.
A lot of these small things constantly remind me that it's a mobile port. Too many control/mechanic decisions feel a little foreign to the keyboard and mouse. It's unfortunate that these small issues glares over an otherwise fantastic game, because I've thoroughly enjoyed every moment of the actual gameplay.
If you can accept that, then you should definitely check this out. Definitely worth the current price (the standard edition anyway).