More New-Linux-on-Old-Hardware Gaming

• BIT.TRIP Runner 2 - Beta fixes common audio issue, but seems to require a GNOME theme; didn't care enough to troubleshoot beyond that. Uninstalled
  
• DUSK - Works great, really slick game; better than it looks in the trailers.
• Inscryption - Beta works really well.
  
• Penumbra - So far, so good.
  
• Quadrilateral Cowboy - Runs fine; haven't dug-in yet.
  
• Serious Sam 3: BFE - Either runs like shit or looks like shit despite exceeding recommended specs; barely playable either way, which is disappointing because it's a good game. Uninstalled.
  
• Middle-earth: Shadow of Mordor - Doesn't work. Various recommended fixes out there that seem to apply to a number of Feral Interactive Linux ports; most involve defining lib folders (either via launch options, symlinks, manual copies, compatibility releases, etc...) for specific package versions, but none worked reliably on EndeavourOS and most affected users seem to have turned to Proton. There's a 3GB beta update that I'm gonna try before giving up on it.
• XCOM: Enemy Unknown - ...And this time, Feral nailed it!