March 3 is the 62nd day of the year in the Gregorian calendar (63rd in leap years). As of this point, there are 303 days remaining until the end of the year.
- LEGO Group and TT Games publishing extended their global exclusive partnership for development of LEGO video games through to 2016.
- 3837 Monster 4 was released in the US.
- 7684 Pig Farm and Tractor was released in both the US and the UK.
- 10211 Grand Emporium was released in both the US and the UK.
- 852850 Jessie Keychain was released in the US.
- 852856 Max Key Chain was released in both the US and the UK.
- The March 2015 Monthly Mini Model Build event was held.