Love Desolation
Two ideas:
Don’t overload the game with characters and dialogue.
Make select Pokémon fights really interesting by introducing a choice or difficulty setting just before the fight.
Prune the character catalogue:
I just played through Rejuvenation. Desolation remains my all-time favorite fan game. Towards the later chapters in Rejuvenation, the sheer amount of characters to remember, along with new introductions, old revisits, and long, boring, overwhelming dialogue, meant I ended up just skipping a lot of it.
So please don’t let Desolation fall in quality over the chapters by adding overwhelming complexity. Elegance is simplicity, and a great, simple story is something that Desolation already has and should not lose by adding a ton of characters we can’t remember and walls of boring dialogue. A good approach is to think "What can we cut?" "What is not absolutely necessary?".
Interesting fights:
I also found that most battles were too easy in Rejuvenation, likely because I had some cheesy strategies for any Rift Pokémon:
Salazzle using Toxic on anything + Chesto Berry/Rest + Protect + Venom Drench.
Galvantula with Gastro Acid to remove abilities that blocked a Toxic strategy, or another mon with Soak to change typing so Toxic would work.
Or a sweeper setup with Baton Pass Drifblim using Minimize, Amnesia, and Focus Energy into a Bulk Up + Leftovers Blaziken that could sweep.
Or no setup at all, just straight Alolan Ninetales with Aurora Veil + Nasty Plot to sweep.
Changing the field early on with certain mons, and later Lycanroc with Lycanium Z to remove any annoying field with its Z-move.
Why am I saying this? Because not a single fight was truly challenging. Maybe Souta was the highlight in Rejuvenation. My favorite fight to date is the Sigmund double battle in Reborn – that one was interesting.
So ideally, have bosses that are not mandatory but easy to access, with insanely hard mechanics. Or, in Desolation, have an option just before a boss fight to affect how hard the boss will be, possibly changing the later outcome or simply the reward from the boss.
I’d love to go for the hardest possible difficulty – and not by limiting myself, like saying I cannot use a certain strategy. I want to be able to use anything at my disposal, and I’d like the game to be tunable to that.
I'm saying the above because i hope Desolation remains at the top of great games!
Best regards,
Peter