Yeah, looking at it this way, that will mostly serve to teach to use the engine (Unreal for now) to make shooters and rpgs. Not that many genres, I know, I know. But I think I'm fine with that? They're kind of the two genres I play the most. But we'll see, maybe I get bored of making the same stuff after a while. Tomb raider and Flappy bird are both interesting for sure.
And wow, I had never heard about Evoland! That's so interesting, it is indeed very similar to what I want to do!
In my case, the plan is to make a super short version of each of those clones and post them on itch as a standalone thing each. They won't be complete games, but more like tiny demos! Don't know how hard and time consuming that will be. Keep in mind I might just put and end to the challenge at some point if I see it's just not doable.
And since these won't be real games (at least not that I'm planning), but just practise tests, I'm thinking of using pre-made assets as much as I can whenever possible (like megascans for example). But yeah, again, we'll see how doable this is as we go.
Ooooooh and it's funny you mention cookie clicker because I made one a few weeks ago! It wasn't great tho and very incomplete...not even worth posting on itch. But it was good as a first touch at UE blueprints and UI widgets for a newbie like me...