WELCOME TO THE NEIGHBORHOOD is an unmissable achievement as long as you simply go through the introduction of the game.

BAD DAD is a bit more complicated. When Amanda asks you what you're going to do during the night, tell her you're going to watch The Game. You'll end up at a bar where you will meet Robert. Converse with him, and he will ask to take you home. Say yes each time he asks if it's okay, and you will unlock the achievement. (NOTE: Even if you displease him during the conversation, he will still offer.)

WORLD'S BEST DAD is extremely hard to miss. All you have to do is treat Amanda well, and you will get the achievement at the end of the game.

KNIFE DAD, KEG-STAND CHAMPION, MARGARITA ZONE, INTERVIEW WITH THE VAMPIRE, KING OF CARROT FLOWERS, SOFT BOY, and ASIAGO-GETTER all require going on all three dates with every Daddy. Note that you can't do this all in one go, as the ending triggers after your third date with any of them.

DREAMIEST DADDY is earned after going on EVERY date with EVERY dad, which means you will have to get all seven of the aforementioned achievements related to going on all three dates.

WORLD'S OKAYEST DAD is earned after not joking around with Amanda as much, sleeping with Robert on the first night (which may be avoidable, but this is how I've seen people do it) and being awful to her in general. Don't push when she's feeling bad, and say "good" when she apologizes to you.

YO HO HO HO can be earned on your first date with Brian, in which you go to a golf course. Score 18 hole-in-ones to earn the achievement. CLICK HERE for a comprehensive guide on how to get a hole-in-one on each level!

CATCH OF THE DAY can be earned on your second date with Brian, in which you go fishing with him. In the "match that fish" minigame, you must score at least 2,000 points to earn the achievement. Just attempt to match fish as fast as possible; the minigame is completely based on RNG and there is no consistent pattern of fish to match.

LET AMANDA SAY (CENSORED) can be earned on your third date with Robert. At one point, Amanda will swear once you're home. Choose the answer "I don't give a ♥♥♥♥ anymore" to earn the achievement.

CANNONBALL can be earned on your third date with Craig. When you go to the waterfall, keep jumping off, even after Craig leaves. You will die, then earn the achievement.

PANIC! AT THE DISCO can be earned on your second date with Joseph. Choose ALL THE WRONG DANCE MOVES (for example, I chose The Worm, Windmill, then Twerking) then do a backflip. Joseph will attempt to stop you, but you will die, then earn the achievement.

SAVE FERRIS can be earned on your third date with Brian. When you are on the ferris wheel, choose "be an ♥♥♥♥♥♥♥", then "punch him". You will die, then earn the achievement.

Finally, a year and a half after the game's release, the ESCAPE FROM MARGARITA ZONE achievement is now obtainable and you may now 100% the game!

The fastest way to get this achievement is to create a very specific Dadsona. I'm unsure if you are able to obtain it by playing through the game again, so I just did it the easy way.

Rather than explain it in full by myself (since it has already been done several times and I'd rather not plagiarize someone else's guide), THIS GUIDE explains how to get the achievement!

The only precaution I need to give is that I am pretty sure you have to have finished Joseph's route first, because from the reading I have done on it, those who had not gone through his initial ending did not get the cult ending. Personally, I believe that you should finish the game in full first before you get this ending, since it's a bit more of a coherent conclusion to the game than anything else.

PLEASE NOTE that the game developers have said that this is not a canon ending, and that they put it into the game due to the data mining people had done. The Dream Daddy universe is still wholesome.