Successfully complete the indicated task to unlock the corresponding option or effect at the main menu:
- After Story option: Successfully complete the main storyline with eight or more Orbs Of Light.
- Alternate main menu: Unlock the "True ending" in After Story mode.
- CG mode: Collect at least one Orb Of Light in the main story and complete the Arc.
- Music mode: Collect at least one Orb Of Light in the main story and complete the Arc.
- Orbs Of Light at main menu: Each Orb Of Light collected during the game will appear at the main menu.
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- Long Slope (30 points): Prologue clear.
- Clannad (100 points): Unlock and complete all scenarios.
Additionally, there are 21 secret achievements:
- Amiable Scenery (Unknown): Clear Miyazawa Yukine's scenario.
- As Long as There's Both of Us (Unknown): Clear Furukawa Nagisa's scenario.
- By Far (Unknown): Clear Sagara Misae's scenario.
- Cherry Blossoms in Full Bloom (Unknown): Clear Sakagami Tomoyo's scenario.
- Consistent Enjoyment (Unknown): Clear Sunohara Mei's scenario.
- Day After Day (Unknown): Clear Ibuki Fuko's scenario.
- Exciting School (Unknown): Clear the game book.
- Fantasy World (Unknown): Get all of the orbs of light.
- First Orb (Unknown): Get your first orb of light.
- Fuko Master! (Unknown): During Fuko's path, master every prank.
- Glorious Baker! (Unknown): Clear the grass-lot baseball scenario.
- Hiiiiiiii! (Unknown): Clear Sunohara's scenario.
- Long Hair (Unknown): Clear Fujibayashi Kyou's scenario.
- Mino Ayumi's Future (Unknown): Clear Fujibayashi Ryou's scenario.
- Platinum (Platinum): Receive all trophies.
- Saito Appeared (Unknown): Cause Jet Saito to appear.
- Spacious Garden (Unknown): Clear Ichinose Kotomi's scenario.
- The End of the Journey (Unknown): Clear Koumura Toshio's scenario.
- To a Small Palm (Unknown): Receive the true ending for After Story.
- Tomoyo's Ultimate weapon (Unknown): During Tomoyo's Path, successfully perform a 64 hit combo.
- Two Lights (Unknown): Clear Hiiragi Kappei's scenario.