Origin, Custom, and Dark Urge aren't just cosmetic choices, class is easy to walk back, and the level cap is lower than you'd guess — all worth knowing before the character sheet opens.
You don't need to have played the earlier games or know Dungeons & Dragons rules to start Baldur's Gate 3 — it teaches its own D&D 5th-edition ruleset as you go, and the story doesn't lean on anything from Baldur's Gate 1 or 2. What actually matters before you open the character screen is smaller and more practical: whether you play a premade companion or build your own, and how much that first pick locks you in.
You get three real options, not two.
Origin characters are six of your future companions — Astarion, Gale, Karlach, Lae'zel, Shadowheart, and Wyll — playable from the start instead of recruited. Each comes with a fixed race, class, and background you can't touch, plus a personal questline and reactions written specifically for them. Pick one and you're playing a character the writers built with a backstory already in motion, which means less room to shape who they are underneath.
Custom character is the option most people mean by "make my own." Every step is open: race, class, background, ability scores, appearance, none of it preset. The trade-off is that a custom character has no personal companion questline of their own — the origin companions still have theirs, and you experience it from the outside, as their ally rather than the one living it.
Dark Urge sits in between: fully customizable like a Custom character — same open race, class, and appearance choices — but built around its own unique origin story layered on top, with dedicated cutscenes and dialogue that react to it. It's the closest thing to "have your build and get a personal plot too," at the cost of a specific narrative throughline you don't get with a plain Custom character.
None of the three is a mechanical trap. The real question is what you want out of it: a companion's story already written, a blank build with no origin plot, or a custom build wrapped around one.
Twelve classes are on the table — Barbarian, Bard, Cleric, Druid, Fighter, Monk, Paladin, Ranger, Rogue, Sorcerer, Warlock, Wizard — and the choice isn't just a combat kit. Class changes what the world lets you do and say: skill checks, dialogue options, and interactions in and out of combat all shift with it.
That said, it's the one creation-screen decision you can undo. Early in the game you meet Withers, an NPC who sets up shop at your camp and offers a respec for a flat 100 gold, no matter how many times you use it. A respec lets you rebuild class, subclass, ability scores, skills, spells, and feats from scratch — but it won't touch your race, your background, your name, your appearance, or anything tied to your quests. If you're an Oathbreaker Paladin, you'll need to square things with the Oathbreaker Knight before Withers will touch your build at all.
In practice this means the class you pick at creation is a starting guess, not a life sentence. If a build feels wrong ten hours in, 100 gold and a trip to camp fixes it — the things that don't come back (your race, your companions' opinions of choices already made) live elsewhere, not in the class you chose. Withers isn't a creation-screen feature, though — you have to reach him and bring him back to camp first, so the first several hours are still played on whatever you picked at the start.
Baldur's Gate 3 caps characters at level 12 — there's no late-game grind toward 20 like the tabletop rules allow. That number matters at creation because multiclass builds spend levels the way a budget spends money: every level put into a second class is a level not spent deepening the first, and with only twelve to work with, a three- or four-class spread leaves each one shallow. If you're building your first character, sticking to one or two classes gets you further than spreading levels thin across several.
A few things that don't show up on the character sheet but shape the first few hours:
If you've already got Karlach in your party and are wondering how her story can end, that's covered separately in our guide to saving Karlach.