This is an incredibly well put together game for the time limit. I would have played for a lot longer if there was more to do as you played, or little secrets to be found as you explore the map. Jumping across the water took a few tries because this shader doesn't lend itself well to clear depth of field, but I did eventually make it. It was funny to see my stream of ants all jumping on the rocks to the other island. All in all, this would be a wonderful proof of concept for a larger game and it has a ton of potential for things that could be added. The base mechanic itself is satisfying enough that it would serve a larger game well. I was able to get some wacky numbers (my ants had 1.7000000002 speed at one point and I also had .57 of a leaf in my colony) but other than that I didn't see any bugs, unless of course you include the ants. Really great job here!
Also, in case you didn't know, your game was played on Mark's day 3 stream!