The pricing on Temu may appear too good to be true, but generally the price advertised is what you'll pay. Promises of free items, however, always come with a catch, and can be quite hard to achieve, so take these offers with a grain of salt. The inbuilt games also take a lot of time and effort to get anywhere with, so it probably isn't a good idea to pin your hopes on scoring the massive discounts that it promises.
Having said that, the platform regularly offers discounts which bring pricing down even further than face value, and those can usually be trusted. These discounts are often significant, but it should be noted that they come with a time limit, and are clearly designed to create a sense of urgency and get you to place an order quickly.
Of course, as is the case with Shein, it’s important to consider the ethics of a platform like Temu. Though the site is new enough not to have too many allegations against it, it likely follows the same rule as all online retailers—that is, for a product to be priced so low, something (be it Temu's workers or the environment) is likely being exploited.
It is also worth noting that Temu has a minimum purchase amount which, in our research, appears to go up with each order, so this is something to be aware of when shopping. The standard initial minimum seems to be $15AUD and it's a good idea to not exceed this too far on your first order so you can get a feel for the types of products you'll be receiving.