From the screenshots of your profile you’re not doing anything “horribly wrong” - the models look solid, the PSX style reads clearly, and the PlayStation-style side bar on the covers gives you a nice, consistent identity. The main issue is how you present and communicate the packs. On the pump shotgun and double-barrel pages the description is already decent, but on the flamethrower and some single assets you only have one sentence like “After purchasing you will recieve a .glb file” and that’s it. For someone buying assets, the boring technical info is what sells: exactly how many models are in the pack, rough polycount, texture sizes and types, file formats (.glb, .blend, maybe .fbx), orientation/pivots. Add one clear line about the license: allowed in commercial games, jams, trailers, screenshots etc., not allowed to resell the raw files. And it’s worth fixing typos like “recieve” and “FlameThrover” - tiny thing, but it signals how much care went into the page.

Second thing is previews. You have nice renders on a grey background, but I’d add at least one “in-game” shot: first-person view with hands, or just the weapon placed in a simple lit environment, plus one close-up and maybe a wireframe view. That boosts trust a lot, because people see how it behaves in a real scene. On some pages the text takes half the vertical space and the image is quite small on the side - you could crop tighter so the weapon fills more of the frame. Since you’re doing PSX, consider showing one shot with a stronger retro / dithering look so the vibe is instantly obvious.

Last point: just uploading assets to itch usually isn’t enough to get attention. Every time you release something, post a short showcase on Twitter / Bluesky / Mastodon, drop it in relevant gamedev Discord channels, and write a tiny devlog on itch about how you made it. Use strong tags like “psx”, “retro 3d”, “low poly weapon”, “low poly gun”, “psx horror”. You can also bundle several of your weapons into a bigger “PSX Weapons Pack” and push that as the main product, with the single items as cheaper options. That usually catches the eye better than five separate pages with one item each. Long story short: your base work is good, you mainly need clearer information and a bit more context/screenshots, and your chances of getting attention should go up a lot.