easy accessibility and fast rewards may become addictive.
I suppose that what happened to both of you(gaming in different spheres).
If you are committed to each other you can save the marriage,but it will take lot of work to rebuild the trust you both lost. It is not easy to forget,but forgiving and working will help. You both have to commit to sharing your fears ,facing them instead of projecting them into addictive routine.
It will take a hard work to reconnect,understand and trust each other,but if you love -it worth it
god bless