Idle Supermarket Tycoon is one of the most popular idle games on iOS and Android platforms, for good reason: it’s massively addicting. You can load up on cash to buy newer and richer supermarkets, but you can also use gems to purchase epic upgrades, which give you permanent boosts that last even after you prestige. You can purchase gems using in-app purchases, but there are also a ton of ways to earn free gems. Read on for some tips and tricks on how to earn a ton of gems for free in Idle Supermarket Tycoon!
The first and easiest way to earn free gems is to complete the missions when they pop up in the top right corner of the screen. When you see a red “!” underneath a mission, that means you still have to do something in order to complete it, but if you see a green “!”, then you’ve completed the mission and your reward is ready to collect. The further that you go into the game, the more gems each mission reward will be worth.
Watch for the VIP car to show up in the parking lot, and tap that whenever you see it. An ad video will play, and it will either earn you free cash or free gems upon completion. About 4/5 of the time, cash will be the reward, but when gems are the reward, they’re a significant amount (between about 15 and 40). So watch the ad videos as they pop up.
The double-earning video bonus can earn you free gems once per day. All that you have to do is watch the “x2 income” video six times in a row. Upon the sixth time, you’ll get a chest full of gems, and each day that you do this, the chest will be worth five gems more, so do this every day, even if you don’t plan on playing at all for the rest of the day.
It’s important to not only earn gems, but to be smart in how you spend them. One thing you should generally NOT spend them on is tripling your offline income. You can just as easily double your offline income when you return by watching an ad video. The only exception (the only time that you should spend 20 gems on tripling your income) is when the triple income will earn you an instant or near-instant purchase of the next city’s supermarket.
Instead, save your gems so that you can spend them on epic upgrades. Tap on the wrench-and-screwdriver design button to see the epic upgrades. Each upgrade is permanent, so it will last through every supermarket. You can upgrade everything from the performance of a specific stand, to the speed of customers or the speed of cashiers, to upgrading the income multiplier for each city. Spend wisely!