This guide is not spoiler free for character names. If you're going for specific routes, it's easier to know what and who you might be going for ahead of time. There is nothing listed related to the actual route stories though. This is basically a fill-in for the blank story tree.

Specific chapter requirements to reach the end of each route (A-H) from the in-game story tree.
Not all chapters have route-specific requirements - only the ones listed in this guide do.

Once you complete a route, you can save your completed data into a new file, then reload before the final fight and use the story tree to return to chapters with objective requirements. This saves a lot of time if you're going for achievements, plus you keep your level and items without starting right from the beginning again. If you save over your previous file with your new clear data, you will NOT be able to access the story tree you had been working on. Make sure you save your clear data in a new save slot.

Route Order Recommendation (least amount of back tracking):
B, A, E, F, H, G, D, C.

You automatically begin on Route A and depending on if conditions are met, you will either stay on it or be moved to another Route at the end of the chapter automatically. In this guide, this would be shown based on the next objective letter listed.

For example (Route C):
Chapter 11 (A): Lance is not defeated after he appears.
*This transfers you to Route C

Chapter 12 (C): Sar Galious is defeated.
*This will keep you on Route C.

Chapter 16 (C): Lance is defeated.
*This is the final objective for Route C and will lead to the Route C ending.

• Achievement: Langrisser I - Chapter 1
  - Obtained by completing Chapter 1
  
  
  
• Achievement: Ledin, Transcended
  - Unlock all of Ledin's class options
  *Rolling back the story tree will speed up the "Ledin, Transcended" achievement because you'll be able to keep your levels and EXP, plus you won't need to start the game from the beginning like you would if you loaded your cleared save data.
  
  
  
• Achievement: Immaculate Legend
  -Acquired all achievements for Langrisser I & II
  *You will only get this achievement if you have completed the objectives in this guide AND the Langrisser II companion guide.
  

Route Requirement by Chapter

• Chapter 11 (A): Defeat Lance when he appears.
  
  
• Chapter 17 (A): Chris is defeated.

Completing these objectives will result in Route A's ending.
- Achievement: Langrisser I - Route A

Route Requirement by Chapter

• Chapter 11 (A): Defeat Lance when he appears.
  
  
• Chapter 17 (A): Chris is not defeated.
  - Achievement: Chris's Savior
  

Completing these objectives will result in Route B's ending.
- Achievement: Langrisser I - Route B

Route Requirements by Chapter

• Chapter 11 (A):Lance is not defeated after he appears.
  - Achievement: Fighting with Reason
  
  
  
• Chapter 12 (C): Sar Galious is defeated.
  
  
• Chapter 16 (C): Lance is defeated.

Completing these objectives will result in Route C's ending.
- Achievement: Langrisser I - Route C

Route Requirements by Chapter

• Chapter 11 (A):Lance is not defeated after he appears.
  - Achievement: Fighting with Reason
  
  
  
• Chapter 12 (C): Sar Galious is defeated.
  
  
• Chapter 16 (C): Lance is not defeated.
  - Achievement: Old Foes, New Allies
  

Completing these objectives will result in Route D's ending.
- Achievement: Langrisser I - Route D

Route Requirements by Chapter

• Chapter 11 (A): Lance is not defeated after he appears.
  - Achievement: Fighting with Reason
  
  
  
• Chapter 12 (C): Sar Galious not defeated.
  - Achievement: Betrayal
  
  
  
• Chapter 14 (E): Save Betty after she appears.
  
  
• Chapter 17 (E): Do not defeat Chris.

Completing these objectives will result in Route E's ending.
- Achievement: Langrisser I - Route E

Route Requirements by Chapter

• Chapter 11 (A): Lance is not defeated after he appears.
  - Achievement: Fighting with Reason
  
  
  
• Chapter 12 (C): Sar Galious not defeated
  - Achievement: Betrayal
  
  
  
• Chapter 14 (E): Save Betty after she appears.
  
  
• Chapter 17 (E): Defeat Chris
  - Achievement: No Turning Back
  

Completing these objectives will result in Route F's ending.
- Achievement: Langrisser I - Route F

Route Requirements by Chapter

• Chapter 11 (A): Lance is not defeated after he appears.
  - Achievement: Fighting with Reason
  
  
  
• Chapter 12 (C): Sar Galious not defeated
  - Achievement: - Betrayal
  
  
  
• Chapter 14 (E): Fail to save Betty after she appears.
  - Achievement: None of my Business
  
  
  
• Chapter 16 (G): Do not make Jessica an ally
  - Do not attack Jessica or her mercenaries with Ledin - if you do she will join willingly.

Completing these objectives will result in Route G's ending.
- Achievement: Langrisser I - Route G

Route Requirements by Chapter

• Chapter 11 (A):Lance is not defeated after he appears.
  - Achievement: Fighting with Reason
  
  
  
• Chapter 12 (C):Sar Galious not defeated
  - Achievement: Betrayal
  
  
  
• Chapter 14 (E):Fail to save Betty after she appears.
  - Achievement: None of my Business
  
  
  
• Chapter 16 (G):Make Jessica an ally
  - Achievement: Light of Langrisser
  - To make Jessica an ally, defeat one of her mercenaries with Ledin.
  

Completing these objectives will result in Route H's ending.
- Achievement: Langrisser I - Route H