The games you listed on that list of “retro” games are simply older games, not at all retro or 8bit. This is going for a classic style.
If you’re getting nausea/sickness, you may want to stop playing for extended periods of time. Other than that… Turn off your audio. That’s the only solution I can really see.
If the problem persists, I’m going to assume you also get motion sickness while doing jump puzzles and tend to stray from partaking in them. Try Infantile Mode for a less intensive gameplay experience.
Also, Eve Online isn’t really considered a low-graphic game…
EDIT:
Caught your edited p.s. so I’ll respond to that in this edit area.
The only real way to not get lost is to keep up with your allies. Call out and coordinate. If your team won’t do that, find a new team, or just run solo. It scales very well (aka it’s challenging with 1-5 without being overly insane, unless you do 5 with nobody doing anything but yourself).
