There are ways to make Stardew more competitive:

• Parody of The Bachelor and all players could compete to marry one NPC

• First to unlock each new area and plant a sign, like a conquistador planting a flag

• Biggest ho: first to get 10 hearts with all romancable NPCs

• First to get married and have 2 kids

• First to get to a million (if you chose split money)

• Most money earned in a day/season/year

• Most combined hearts from NPCs in a day/year/season

• First to complete ___ collection