Alright, rate this then. Maybe I'll give it a shot.
Just came up with this now and got partial inspiration from but also having an itch for some monhun/shadow of the colossus.
It's too bad I have never played SotC, the emulator I used was horribly laggy for it. Gibs me an ISO and a good emulator for it and I'll draw from that.
Titan's Shadow
-There are areas
-There is a hub world.
-There is technology, you have a mech suit and are on a new planet in the Andromeda system, but cut off from Earth and her support.
You are a Hunter, and you can hunt Beasts, which are big, but not the main feature of the game. There are titans which roam around. These titans are essentially the level of the game, and both inferior races and beasts live on them. You want to kill these titans. Each titan killed grants you a very special material, one of which is needed for ever so important upgrades. (Basically you get to upgrade one special thing for each titan kill, so choose wisely.)
Why do we want to kill them?
If we don't, eventually one will squish us like most of the other remaining human settlements. Additionally, these titans are both nests and staging grounds for antagonistic entities to raid us.
There are all kinds of titans, usually made from flesh and bone. We are not sure how or why they exist, but they roam and are very passive unless provoked by us or other creatures living on them (which hate us).
Core gameplay has you podshoot (A cannon that literally shoots you to target to be fuel efficient, because dropships are expensive. It's a railgun that you brace into. For the return trip you canonically go to a location with an active one of these. They're charged by the sun, why not. Your suit has jet bits that help keep you in the air and allow you to make controlled falls/fall slower/more directed.)
You then must approch the nearby titan and ascend the creature, which is the level of the game. Along the way there's swarms of mooks to kill, which can kill you with sheer numbers. There are also beasts which act like minibosses for the whole level/mission. Note: Your degree of flight skill during podshoot can bring you closer to the titan.
Graphics: Probably a bit cartoony, but human proportions should be regular. Remember my into art is not that strong, as far as I know.
Levels themselves: A big bowl area. You must get near the titan before it climbs whatever mountain or geological feature. Once near the indiginous living on it will agitate it to make the titan aggro you so it doesn't just continue to walk away like an asshole or leave the pretty area while you are on it. The titan is the level, and area is just a convenient place for the titan to be.
Note: These titan missions would be more like the Urgent Quests in monhun, overall acting like a boss. There could be smaller missions where you have to do X, usually extract some material, protect this mining crew, which have Beasts along the way. This or going to hunt a beast because some eccentric faggot wants it on his wall. Compelling filler??? However, I likely would not include "kill X of these mookbeasts" because those are boring and grindy. Materials grinding is also a chore so these missions would be for money, which you use to buy the things you want in your suit.
If I do actually get that into it I'd see how far I could go with customization.
Oh, yeah, I suppose these titans would have to be much larger and lumbering then in SotC, since they form an actual ecosystem, so there's that.
So, rate. Constructive criticism welcome, as long as you provide good suggestions or solutions to problems that you see.