I made a mod, for this game, I put it on the nexus. It is called 999 stax - i made it for my friends, because, well, this is a singleplayer/coop game, and mods work in that respect.
BUT I REALLY DO NOT WANT TO MOD.
not only is modding incredibly difficult at the moment (deca > decompiles > hex editors > goddamn I’d rather be playing or outside lol) but patches will make alot of modding constantly needing to be redone.
And we don’t even mod much! The things my mod does, should just be in the game.
PEOPLE, not just me, want more stack space. I recommend you make it so bloody Stacks (and some things that DO NOT STACK, such as gas tanks and radios) have a larger stack value in the Stash than in the player inventory. For example, sure, make it so I can only have 1 gas-tank and 4 rockets (or is it 5? forgot the vanilla value after playing with modded haha) in one inventory space. But in my STASH, i could have… maybe 4 gas tanks per 1/100 slot of the stash, and 16 rockets.
The other thing people want is for clothing to have better attribute values. The current values are an insult. They tease you with values that are negligible. Gasmasks protection from Gas is an insult. IT should be at least … 50%… perhaps… at least. I set it to 75% and even then it’s just eating your health away at such an extreme rate that you wonder if you’ve even got it on. Pilot masks should also perhaps have at least 25% or so gas resist.
AND THE EXO SUIT. I made it so you get a jumping bonus, a fall damage reduction (major) and also running speed bonus, on the boots and legs. (they’re the onlys bits im willing to wear, the rest looks too stupid).
I would love to see ALL of these parts, though, have an effect. It is beyond my expertise and experience to add something such as the ability to toggle on Thermal Vision to the Exo-Suit Goggles. But it bloody well should have that effect, in my opinion. That would be so cool, and make the grind worth it.
This exo-suit thing was something someone else asked me for. A mate of mine spent SO LONG, using time that frankly I know personally that he should be spending doing other more healthy and productive things in his life doing, grinding along there for that Exo-Suit. And he said after that was all done, he was sad, so sad, lol. Cos the suit looks kinda dumb - I mean, most of us would prefer to wear all the other cool clothes. And it DOES NOTHING. The goggles they do nothing. 
the exo-pants, with your giant red arse-canister, does nothing. stoopid-boots, nothing. I don’t even know about the chest, what it looks like, cos dang if I’ll ever bother grinding for it, and I wanna wear my punk jacket lol
please beloved devs
readjust stats. ALSO, make it so ammo is fed from the inventory, and only a magazines worth is attached to the weapon, not a silly stack. Make it so there’s a button, such as Y in stalker, which is basically ''what type of ammo should i reload?". Even the ancient game of stalker, you could even start loading your pump-action with the Y-button selected on ‘‘buckshot’’, reload one, quickly hit Y to cycle to say, slugs or flechette, load ONE OF THEM, quickly cycle again, LOAD ANOTHER BUCKSHOT, cycle again, load a slug, to make a mix-and-match shotgun tube of tactical fun. I don’t expect that kind of comprehensive realism but people do expect to just have ammo in their inventory and to be able to hit R and load it - with, below perhaps where it says what fire-mode is selected, what AMMO TYPE is selected.
But yes, please readjust the stash… it’s not enjoyed in its current values. I watch my friends, cos i play with 3 using my mod, and 2 who are purists. The purists are miserable - playing inventory tetris all day. with the miserable 4 rockets which do no damage.
That’s another note! why is the RPG so bad? Even the experimental one is a piece of rubbish. If you’re gonna take up so much of my inventory space and rockets are quite rare, they should be more effective. More bang, please.
So to summarize :
People want to be able to stash more.
People want exo-suit and experimental jacket and pilot mask and other cool clothes to have some more substantial, realistic effects.
People want RPG to have more bang for its buck.
People want to a revision of the way ammo and ammo types are selected and loaded into weapons.
OTHERWISE thank you and I have already roped like 5 mofos into buying the game and most of them have bought the island DLC, too, after playing and loving the game. But hey 3/5 are in favour of ^^^ in mods, 24 people so far have downloaded my ''Stack AND clothing changes" mod and 9 people downloaded the “only stack changes” mods on the nexus. My 2 friends who just play vanilla just want YOU to make the changes and would rather not play anything but vanill, because they whinge all day and we’ve all talked about this alot on discord and steam and in real life