Frozen Shelter Gameplay | Indie Puzzle Game | Ending

This is a short puzzle game, in which you are going to have to figure out how to get up to the surface all while maintaining a warm temperature in the shelter. In other words, this is a puzzle game with a timer, because you don't have unlimited lumber to burn for heat. If you figure out what you have to do the game is really not that long but the price is not that high so for just a couple of bucks you can try this game and support indie devs too.

From Steam:
"Frozen Shelter is an indie first-person walking simulator game made in realistic 3D graphics. As a location, the player will be presented with a bunker built during the Cold War of the USSR. The fascinating atmosphere of loneliness will put pressure on the player throughout the game.

Background:
The events take place in an alternative modern Russia. The epidemic that killed half of the world's population forced people to hide in bunkers. Over time, food and water supplies began to run out. Gradually, hunger began to drive people crazy. Fear and misunderstanding of how to live on pressed on them more and more every day. One day the situation escalated so much that the only right decision was to escape and try to find food at the top.

Plot:
The main character is a resident of one of the bunkers, an engineer who monitors the serviceability of equipment and eliminates its breakdowns. During the general escape, he was busy repairing one of the main elements of the bunker's life support. By giving people another chance, he missed the opportunity to get out himself. Now he has to leave the bunker using engineering ingenuity.The player will need to explore the bunker of the Soviet Union, interacting with all the small objects on the location.

As he progresses, he will need to solve puzzles, pass mini-games, monitor the body temperature of the main character and immerse himself in the history of each resident who left this bunker."