Hahaha, thank you very much!
Yeah, honestly, we ourselves didn't fully believe it was possible so you can call it a gamble. The narrative and atmosphere of Rendezvous With Death were I believe the most important aspects that we focused on, but of course we were low on time and wished we had at least 1 more day.
We are already working on a post-jam patch and might as well see how well it will be received by people, so a full game MIGHT come out one day.
In terms of how, I think, magic + luck + dedication + just 3 people and a cat, luckily all of us were of different roles (art, design, code) :)