Thanks for the review! Glad to see you enjoyed it!
The difficulty does increase, but only by spawning another farmer every 30 seconds. As the game goes on, the farmers have a random chance of being created either faster or slower, with the range of speeds being increased more and more as the game goes on (i.e. each farmer starts with speed c + randomBtwn(-farmersSpawned, farmersSpawned) or something like that). So the game does get gradually more difficult, but that’s not made clear to the player. You’re right tho - that’d probably be something good to emphasize should we choose to continue working on the game.
Thanks for the feedback! Good luck in the game jam!