Steam achievements (along with a few extra events and some dialogue changes) have been added! Keep in mind that the achievement unlocked icon won't be displayed in-game (can't do anything about that, sorry), but you will earn the achievements normally.
When the month ends and I get the first income I will start looking for a manga artist to do card artwork so I can add Steam Trading Cards as well.
Until then, enjoy!ːsteamhappyː