Number Station by Sloan Kelly
You are alone.
A rescue ship is on the way, but it is 10 hours out and you have a dwindling oxygen supply.
You can chop down the local vegetation to extract oxygen to top up your suit. You will also need to located batteries and the ship's radio that you seem to have become separated from.
Make sure you have enough power before the rescuers arrive! That radio has to be transmitting for them to pick up your distress signal.
Use the W, A, S and D or arrow keys to move. Chop down trees by running into them. Drop off batteries at the radio to keep the signal broadcasting.
Source code for Unity 5.6 is below as is the executable for Windows.
Windows link was broken, fixed now. Sorry :(
| Windows | http://sloankelly.net/projects/ldjam39/ns.zip |
| Original URL | https://ldjam.com/events/ludum-dare/39/number-station |
Ratings
| Given | 0🗳️ | 0🗨️ |
Here is my entry: https://ldjam.com/events/ludum-dare/39/runoutofenergy-the-game rating me please! :D
There my game link for Windows… enjoy https://www.dropbox.com/s/dpapwuoscuiu9eq/RunOutOfPower.zip?dl=0

Is it okay that link leads to this:

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If I could change one thing on this game I think it would be that you need to collect a certain number of batteries to power the radio to call for help before the time runs out, and then just make trees give more oxygen and there be less trees. Then it would force the player to go out and get the batteries as opposed to just wasting time til it gets close to the end.
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It feels like you probably just ran out of time or perhaps got stuck on something along the way. But it is better than quite a few of the games I've played so far. I'll look forward to what you make next time!