I'm on mobile in Virutal Age (almost done).
Pros:
1) I like the collapsing ages (and it's cool that if you collapse all the ages, it's one "continuous" picture.
2) Uncollapsed age, showing what's next, what's done, and what's unavailable seems ok.
3) Tech pop-up: showing the icons of what you're getting (and the avatar you're getting) at the bottom is good.
4) Highlights section on collapsed tech areas is nice.
Cons:
1) UGLY. On mobile, the old panel fit in with everything else. This is really ugly. I use dark mode on my phone/tablet and the background is too bright, the colors (uncollapsed) are hard to read. I agree with previous comments on cartoonish, and in general looks amaturish.
2) Completed technologies (in technology pop-up) no longer give what goods were used in completion. I'm currently managing Promethium and Orichalcum (sp) and forgot to look before completing a technology. So, to tell if I've used up P/O in that tech, I had to go out to a wiki.
3) Arrows on main page are much less clear than previous. Now, from the main page, it's very hard to tell what technologies rely on what from the arrows. You actually have to bring up the technology panel to see what it needs. This makes it difficult to search the path you need to traverse to get something that may be far out on the tree (example in VA, the production building in Efficient DNA Analysis is really good, so you may want to prioritize getting to that technology, and thus want to follow the path to it. Much harder with this new system).
4) Technology pop-up is too big. Many times you want to see what's in pop-up, but also see the previous panel (mainly to see connections (beyond the technology popped-up). Very little room to scroll the previous screen and you end up bringing up and closing the Tech pop-up.
5) Tech pop-up: previous tech requirements was obvious before. Now, it just blends in with other text. At least bold it or something.
6). Tech pop-up: unlock costs are harder to read. Yes, the green colors (though the green numbers on beige background is hard to read) show that you have enough and also showing how much you have, but I miss the "progress bar" from the previous version and in general find the new resources not easy to read.
7) Collapsing an age then reopening it places you at start of age (instead of the technology (or it's general area) that you're working on).
8) Technologies are smaller (most names have ... at end), yet there are no more per screen.
Thurfyr
