Original tracks from This War of Mine, game by 11bitstudios, composed by Piotr Musiał.

The game with the extended OST, including additional music by Grzegorz Mazur is available here:
https://gamesrepublic.com/game/strategy,this-war-of-mine,148.html
or if you already have the game, the extended OST is available as a free DLC on Steam:
http://store.steampowered.com/app/354350/

This War Of Mine

Piotr is a polish composer and orchestrator for games and films. Currently working on Frostpunk 2 and The Alters.

Previous games:
Frostpunk
Diablo IV
The Witcher 3: Wild Hunt - Blood and Wine
This War of Mine
and 30+ more.

Also additional music or orchestration for film and tv series:
Night at the Museum: Kahmunrah Returns
Leonardo
Penny Dreadful: The City of Angels
Forgotten Love
and more.

This War Of Mine

Piotr Musial