Initial game list in Indie Bundle 19, available March 27th, 2018:

• Halcyon 6: Lightspeed Edition [PC]
  Released: Aug 10, 2017 by Massive Damage, Inc.
  Metascore: 73
• Mini Metro [PC]
  Released: Aug 11, 2014 by Dinosaur Polo Club
  Metascore: 77
• Rakuen [PC]
  Released: May 10, 2017 by Laura Shigihara
  Metascore: 84
• Keep Talking and Nobody Explodes [PC]
  Released: Oct 8, 2015 by Steel Crate Games
  Metascore: 67
• SOMA [PC]
  Released: Sep 22, 2015 by Frictional Games
  Metascore: 84
• Poly Bridge [PC] + soundtrack
  Released: Jul 12, 2016 by Dry Cactus
  Metascore: 73
• SUPERHOT [PC]
  Released: Feb 25, 2016 by SUPERHOT
  Metascore: 82

The two final additions were added to the pay-above-the-average tier, on April 3rd:

• Action Henk [PC]
  Released: May 11, 2015 by RageSquid
  Metascore: 74
• JYDGE [PC]
  Released: Oct 4, 2017 by 10tons
  Metascore: 81

I wish JYDGE was an eshop key for Switch, but Action Henk looks like good silly fun. And from all accounts, SOMA is worth the price alone, if you’re into horror games. This bundle closes April 10th. Get it at HumbleBundle.com.