v3.1.640:

- fixed missing guns bug.

v3.1.638:

- NEW instant action Fuel Depot level.

- made achievements easier.

- some bug fixes.

v3.1.507:

- some bug fixes.

v3.1.353:

- some bug fixes.

- put engine volume back in.

v3.1.334:

- made achievements easier.

- game always shows sign in US for Game Services on initial startup.

- various improvements to try and address some bugs.

v3.0.390:

- fixed another startup bug cause by using old fonts.