Great game! Simple, yet engaging. And has enough plannning/difficulty to pose some challenge. And I love the ambience. One of my favourites I found so far.
Just a few comments of things that you could want to look into. Hoping to be constructive here. Im ranking them in a (subjective) loose order of relevance:
- Regarding bugs I only found one. Playing mainly in the Windows version, sometimes when starting a new game time won't advance. The first raven will fly out but nothing will progress. Not too bad as you restart without having lost but a minute.
- A save functionality missing its clearly felt. The game is long enough to be difficult to complete in one sitting as it is (in fact I havent done it yet). And it would be very much needed for any potential further expansion.
- When you are selling birds it would be a great QoL improvement if the details of the bird you are selling would pop up. Both to allow to compare with birds in the store more directly, and also to make sure you sell the right one and that you will get enough money to get what you want. Mistakes during that phase have ruined some saves in my case (ooops).
- Knowing more details of what contracts will future patrons offer to you would improve the ability of been able to plan what birds you want or how do you want to improve them. In my very first few playthroughs I often found myself unable to deliver any contract of a new patron for days, and it alsocan be a bit frustrating if you see that some investments aren't going to amount to anything. Knowing the contracts from previous plays gives a huge advantage.
- Bird balance feels a bit off, although maybe its intentional. I do feel it detracts depth from the planning and limits viable strategies a bit. Pigeons are simply OP, due to been by far the fastest while having great range and also having low maintenance (space and kernel wise) with their only weakness been they can't deliver parcels. But for anything else it simply doesnt make sense to use other birds. Ravens, even if they use that extra improvement pigeons need to deliver letters in speed or range are still going to be far behind in both categories even compared to a "low quality" pigeon. And Herons only seling point its their massive range, but it pairs terribly with them been the slowest, as range and speed work best together. So they are nearly useless. I feel like any strategy pales in comparison to having a few ravens specialized in parcel delivery and using pigeons for everything else. Herons as they are now would require having the longer deliveries have bigger time windows to complete them, though even then it would arguably not be a great option as the process would take so long given their speed that you would need several birds just to complete one contract every day, and they have the highest maintenance to boot. Versatility is just not that valuable besides the very early game, when you have few birds, due to pigeons been that much superior.
- Last, I feel like streamlining the ranges the birds can fly would make the game a bit better. I feel like the granularity is a bit too much as it adds "false" sense of choice/strategy which can be a bit frustrating for newer players, feeling like a bit of a trap. It kind of combines with the previous points a bit to exarcebate the issue. When you know what contracts you are looking ahead to, you are able to recognise the "better ranges" some birds have are meaningless. There are a few cutoff points that define all. To put a few examples for context drawing from prior points, if you know that ravens are meant for parcel delivery after you get yourself a few pigeons, anything above 600 becomes pointless. And most ravens will have that. Also, for pigeons, you know you are going to need to cover a 2200 km, a 1800km and a 1400 km contract. Anything else can be done with 1000km that every pigeon has. I think gameplay wise it would be better if any jump in range (either that the brid has naturally or that you can get through imrpovement) always means its going to be able to deliver something it coudn't before. That may be a stretch with combined with the different bird types and all, but at least I feel like the aim should be to minimize options that are not worth it at all. The granularity in rnage makes it so there are many right now and arent that easy to recognize.