Class of 09: Is There a Right Order to Play It?

There's no order to play Class of 09 in the sense of picking chapters or routes, because the game doesn't offer any. It's one continuous visual novel that opens on Nicole's first day back among the cliques and runs straight through to the credits, and the only "order" that actually matters is the sequence of choices you make along the way, since those choices are what decide which of the 15 endings you land on.
Why the question even comes up
Plenty of visual novels are built around separate books, episodes, or a menu where you choose which character's route to follow first, and getting that order wrong can mean missing content or spoiling a later reveal. Class of 09 isn't built that way. There's no menu screen offering "Nicole's Route" next to anyone else's, and no numbered chapters sitting on a select screen waiting to be picked in some sequence. Anyone coming from a game with that structure is right to check before diving in, but the answer here is simpler than expected.
How the story unfolds
Once you play Class of 09 free on Dubdoo, the game moves forward the same way every time: click or tap to advance a line of dialogue, then click or tap again when a choice comes up. Nicole's senior year plays out roughly chronologically, one clique interaction after another, and each decision nudges her standing with a group up or down. Those shifts don't reset between scenes. An alliance made early can close off a friendship two chapters later, well before anything that looks like a final "ending choice." So while there's no chapter order to plan around, the choices you make earlier absolutely shape what's available to you later in that same run.
There's no way to skip ahead or go back
Because the story runs as a single unbroken sequence, you can't jump to a later part to preview it, and you can't rewind to an earlier choice once you've clicked past it. Whatever happened in Nicole's last conversation is locked in for that playthrough. If you're trying to reach a specific scene or see how a later chapter plays out, the only path there is through everything that comes before it, in the order the game presents it, not an order you choose.
The order that does matter: your choices, not the chapters
Since there's no chapter order to strategize around, the real planning question is which choices to make and when. The Class of 09 endings guide breaks down how alliance and rivalry decisions compound across the story to determine which of the 15 outcomes you get. If your goal is a specific ending, the useful "order" to think about is which cliques you're siding with early, since a pattern of choices favoring one group consistently outweighs any single dialogue pick later on.
Replaying instead of skipping around
Because there's no menu for jumping between parts of the story, seeing a different ending means starting over rather than reloading from a midpoint. That's less of a setback than it sounds: a full run takes around two hours, as covered in the how long to beat guide, and replays move faster once you already know which conversations matter. Treating each playthrough as one complete pass through Nicole's year, rather than something to be jumped around in, matches how the game is built.
Play Class of 09 free on Dubdoo and follow Nicole's senior year the only way it's built to be played, straight through, one choice at a time. If branching, choice-driven stories are what you're after, Doki Doki Literature Club runs on a similar click-through structure, and Dubdoo's Games for Girls category has more titles built around story and choice.
FAQ
Is there a set order to play Class of 09?
No. There's no chapter menu or route select, just one continuous story that runs from the first clique confrontation straight through to whichever ending your choices land on.
Can you jump ahead to a later part of the story?
No. There's no chapter select, so the only way to reach a later scene is to play through everything that comes before it in that same sitting or saved session.
Does the order you make choices in change the ending?
Yes, more than which specific option you pick. A choice that favors one clique early tends to matter more once it stacks with later choices than any single decision does on its own.
If I want a different ending, do I restart from the beginning?
Yes. There's no branch point to reload from partway through, so seeing a different one of the 15 endings means starting Nicole's year over and choosing differently.