FIRST LEGO League Challenge Robot Game

Each season, FIRST chooses a theme and designs a Robot Game based on the theme. Each season, teams develop strategies to achieve the Game's missions and use LEGO sets to design, build and program robots to achieve the missions that choose as part of their strategy.

Each season there is a new mat that fits on a 4-foot by 8-foot table and a Challenge Set that includes a mat and many bags of LEGO parts to build the mission elements.

See also Season Specifics

Game Rules

• See the official rules for the current season
• FAQ from FLL Share & Learn on 2025-26 UNEARTHED Season Rules
  • FAQ1: Can a very small part of the robot or a mission model we plan to deliver (including cables and attachments) be beyond the black line into Home/Mat or be above the walls in the Launch areas prior to a launch?
  • FAQ 2: Can the robot go off the mat after a valid launch to complete missions, and later also return back on to the mat to continue the run (assuming the team does not touch the robot when it is in Home Area)?
  • FAQ 4: Can my team ask for the loops or other movable parts of a model to be set up in a particular direction/angle/position prior to the match?

Game Strategy

• Community Webinar: How to Develop a Robot Strategy
• Robot Game Lessons from FLL Tutorials (See second half of page.)

Tutorials Specific to SPIKE Prime Sets

• SPIKE Prime Lessons

Tutorials Specific to Mindstorms Sets

• EV3 Lessons

• STEMcentric video tutorials by Dale Yocum (Catlin Gabel) of EV3, NXT, and RCX

• FIRST Robotics Canada EV3 Tutorials