It's never fun to have to write about things like this but it needs to be highlighted. Lab Zero Games, developer on titles like Skullgirls and Indivisible seem to be a sinking ship.
A bunch of their developers have now quit together, from what I've seen this appears to be more than half their staff. Why? The theme here appears to be Lab Zero Games owner, Mike Zaimont, who appears to create an unsafe working environment and does not treat staff fairly.
The issue runs deep it appears, as Zaimont was previously accused (Kotaku) of various inappropriate comments, these included gross sexual messages to people and racist jokes (for which he did apologise). This led to an apparent agreement that Zaimont would leave but it appears Zaimont is sticking around and generally making things terrible for staff so it's led to this. Back in July, the official Lab Zero account on Twitter even mentioned they were aware of "allegations" made about Zaimont, with a full statement mentioned to come soon—which didn't happen.
People that have left include Jonathan Kim the now former senior animator, who mentioned the ongoing problems including bullying from Zaimont. Additionally Mariel Kinuko Cartwright, the now former Creative Director on Indivisible and Lead Animator on Skullgirls has also left with a statement to back it up and the list of people continues on and on. More has come out of this, with Brandon Sheffield who was the lead writer on Indivisible for Lab Zero, posting on Twitter that they cut ties with them "almost two months ago" as a result of Zaimont's behaviour.
The Linux and macOS versions of their games may also have issues going forwards now (if any of them are updated again after this, that is), as the volunteer developer responsible for maintaining these versions of Skillgirls and Indivisible, Renaud 'cybik' Lepage has also disengaged from Lab Zero.
On top of that a statement was released from Hidden Variable and Autumn Games, mentioning that they will be cutting ties with Lab Zero Games and Mike Zaimont. Autumn Games are actually the IP holders for Skullgirls, so hopefully a fresh development team can be sorted to continue the PC version. In their statement they did mention they hoped to work with the staff leaving.