confused about platinum god

[E.G.G.]

Do i need keeper unlocks to get platinum god? Are there any other exceptions for this achievement?

[kone]

Platinum god will require all secrets anyways (except The Lost's 13), so you'll have to do every Keeper related achievement.

Platinum God for all Rebirth only secrets + all items and endings (except The Lost + his 6)
Real Platinum God for all Rebirth secrets + all items and endings
1001% for all Rebirth and Afterbirth secrets + all items and endings
1000000% for all Rebirth, AB and AB+ secrets + all items and endings

[Icedfate]

as far as I know, there are 2 Platinum God achievments.

I may have it wrong since it's been 2 years since I earned these...

for platinum God, you only need all the base vanilla non AB secrets. you need to do everything except The Lost.

if you get all the secrets as all the characters and then collect all the items as everyone but the lost, you get platinum god.

if you then, get all of the unlocks for The Lost you get "Real Platinum God"

then if you have afterbirth and get all of the Keeper's unlocks, you get "1,000,000%" and an advisory that you probably ought to stop playing

but

if you get 1,000,000% on all 3 save files, you get treated to a unique startup screen. . .

[Arghaab]

You can see all the achievements here :

https://bindingofisaacrebirth.gamepedia.com/Achievements

Basicaly, for Platinum God, it's the 178 first achievements, minus the stuff related to The Lost. Wich also means you don't have to care about the following characters : Lilith, Apollyon, The Keeper and The Lost.
And you don't care about those stages : Greed Mode, The Blue Womb and The Void

But remember that every item unlocked by one of those achievements must be picked up at least once before you get the Platinum God.

[E.G.G.]

Thanks!