One of the reasons stuff costs more in Australia is that there's significantly more consumer protection. Steam originally didn't allow refunds at all, and were fined AU$3 million as a result.

In Australia, it's illegal to say "no refunds" or only exchange or refund as store credit both for physical and digital goods, and customers are always allowed to get a repair, refund or replacement if the product has issues. In the case of a game, that would be things like:

• Game breaking bugs or bug that significantly affects the experience but don't completely break the game
• Changes that make the game behave significantly differently to how it was originally described on the site or in the documentation
• Games that initially support Linux but the company dropped Linux support later on, etc.

Steam's policy of only refunding a purchase within 14 days of purchase and less than 2 hours of play time is also not legal in Australia. You can't have conditions like that on a refund policy. They have a separate refund policy specifically for Australia which excludes the 14 day / 2 hour limits.

Appliances also have to last for as long as a 'reasonable consumer' thinks they should last. For example, even if your TV or fridge has a "1 year warranty", the manufacturer will still have to repair, refund, or replace it if it breaks down in 3 years, as a regular person would assume that a fridge or TV should last more than 3 years. The store or manufacturer has to cover the cost of picking it up and delivering a replacement. It's also illegal for a store to tell you that you have to contact the manufacturer - the place you bought the product from has to let you handle all warranty claims through them.