so I've just started playing league games, and won 3 and lost like 3. But on my last game, we basically had a base trade...in the end, I had WAY more units left than he did so I woulda have won. It said "you are being revealed", and the other player just starts hiding instead of facing me. But then 2 minutes later...it just said "xxxx is victorious", and I go to the score screen, it says "you have left the game". Do you automatically lose if you've been revealed for a while or something? I don't understand how I lost that one at all...
There are 2 ways to win the game. 1.) Destroy every single one of your opponent's Building in the game. ***Not Units.*** 2.) You outlast your opponent. Meaning he or she leaves/quits first. From what I gather from your case, I think he destroyed every one of your Buildings which is why even though you are left with an army you lost the game.