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You’re locked in a room and want to get out. Your first thought, since the door won’t open is the window. That won’t open either but there’s a KEYCARD under it. Take the card and use it on the safe that uses a keycard. From the safe you can take the pouch with GUNPOWDER and the NOTE. The note isn’t really interesting.
Look in the drawers of the bedside table. A lot of stuff in there: A book of MATCHES, a new SHIRT and a pocket KNIFE. Look at the shirt. It’s flamable. We can use that as a fuse. Use the knife on the shirt to cut it to a long strip.
Use the gunpowder against the door and use the cut shirt on it. Step back, walk towards the bed and use the match in you inventory to light it. Then use it on the end of the shirt.
Now that you’ve created a new doorway, you can use it to exit the room.
Game source: A copy of the game was found here  on the internet.