I like this game a lot, but I think it would benefit from rewarding "active" play more, similar to golden cookies from cookie clicker, or the space anniversary event (but to a greater extent), in my opinion the progress is a bit too slow, where if it was 1.5-2x as fast it would be way more fun and would still have a lot of grind.
I also wish that when you unlock a new module (for example, crew), it didn't immediately feel like a brick wall and instead blazed through the first few levels/upgrades as an immediate reward.
I also don't like how retrofitting gets rid of your salvage, I feel like the bases requiring prestige and the limited # of retrofits already discourage spamming retrofit.
I also don't like how the shards (V Device), compute and prestige tabs don't really have any engaging progression: they're essentially just a stat page that you check now and then, but you don't really "choose" anything in them. I think prestige should give you a choice of what you're unlocking next, V Device shards should be upgradable manually or boosted similarly to the reactor, and compute should have a similar XP boost as crew "bonus from highest".
Challenges are also a bit boring in terms of being a tab that you hardly ever engage with, and also feel like a stat page, but I don't know how that could be improved.
But despite all this criticism I think this game is really good, so thank you for making it and sharing it for free as well, very nice of you :) and great job with what you've made