Organ Trail's pretty damn fun. It's essentially Oregon Trail with zombies and a bunch of Left 4 Dead references.
I had the iOS version before buying the Steam version, and I feel like the game's easier to control on a computer as far as shooting goes. That being said, shooting is still a ♥♥♥♥♥ as far as controls go, and it's difficult to nail on the head. Some of the in-game passersby even acknowledge the problems with the controls by stating, "These controls suck!" (They do.) But having a mouse removed the issue of my finger blocking parts of the screen.
The writing is often times humorous and references things from the original game to Castlevania. It gives Organ Trail a certain charm and unusual atmosphere. Some of the locations throughout the game are rather humorous as well (one of these being--I kid you not--a strip club), and it gives me the impressions that the developers made this purely for fun, which I find admirable. It's always nice to find a game that convinces players that the people who made it definitely had a kickass time doing so.
I've noticed that, while the overall gameplay is generally difficult (even on normal), it gets progressively harder as you move further down the map, which I found reasonable, in my opinion. That being said, it's very good at screwing you over, as nothing's worse than wasting half your food and all your time stuck on the side of the road trading away for enough scrap so that you can attempt a repair on the car that ultimately fails, causing you to waste all your scrap. That actually happened to me. It's not fun. However, to an extent, the game is as difficult as your are good at strategizing and planning a course of action. You will blame yourself many times for the mistake you've made. Many times, crises can be avoided or worked around if you're prepared enough. Yet, given this, random events still occur, and if the odds aren't in your favor, you could end up doing well to being dead in a few miles. It's always important to be cautious in this game as a result.
The music is also spot-on as well. Amidst all of the humor and gags, it gives Organ Trail a more solemn tone. Also, it's generally interesting to listen you and combines an 8-bit feel with a more "advanced" (if that's the word) sound to it. I don't quite know how to explain it. But it's really well done, in my opinion.
The graphics are also very charming and reminiscent of the original games. They work really well. Not sure what else to say here. I like them a lot.
Also, the Clement's Quest minigame is hilarious. It's essentially a TL;DR Organ Trail where you control the car and run over zombies as quickly as you possibly can. I discovered it on accident and couldn't have been happier that I did.
Basically, to put it bluntly, despite the game's difficulty, I really enjoy this game and always have a good time while playing it. It was worth purchasing it the second time, and I'd recommend it to anyone who wants a challenge and a nostalgic, yet new take on a classic.