All The Answers here : developers of the 100 DOORS game series presenting a NEW STORY. Solve floors of puzzles, explore mysterious hidden locations, fight with wild beasts and help Alexander uncover the mysterious death of his uncle.
Solution :
In this level, you need to collect items before fix the fuel tank.
Turn on the light and take the keys.
Unlock doors and take the crystal ball.
Move the big back in the lower right room to the left and take knife.
Tap the cardboard box and take the compass.