Yeah youre right, the original devs hired another team to develop survivors apparently, i didnt know that. However the publisher for survivors is “Ghost Ship Publishing” so i assume the creative direction is still heavily influenced by the ghost ship team but i have no idea if thats true.
The somewhat new Deep Rock Galactic: Survivors. Its a singleplayer 2D horde autoshooter version of the game, with the same design / voice acting as the main game but randomized runs where you find different upgrades and weapons leading to lots of cool valid builds to go for.
Its in Early Access rn but if they devs put 10% of the love they have for the main game into it, then it will only become greater. Its 9€ rn and the devs already released a roadmap with great future plans.