I'm really glad you enjoyed it! I do intend to finish this one, I really liked how it turned out.
As for the bad ending, I bet is the sentinel getting destroyed one. I didn't do a good job explaining it at all. It's basically a choose the correct choice thing, with the 'drone status report' giving you a hint of which one is. The hint is too vague though, I goofed there haha, but the hint/answer pair is always the same, so you can eventually learn the answer.
Thank you again for testing it!