Killer Deals: Steam Summer Sale 2025

A curated list of 40 discounted mystery games for under $400

The Steam Summer Sale ends in less than 3 days (ends July 10th!), so you will need to act fast in order to snag these mystery games at highly discounted prices!

Today, paid subscribers can access a list of 40 games, currently discounted for the Steam Summer Sale by an average of 55% off down to ~$355. Those discounts save you ~$440 total!

Or, if you’d prefer to do your own shopping, you can reference this guide.

All games in today’s list:

• Have a minimum of 75 reviews

• Have a minimum rating of “Mostly Positive”

• Have discounts at least matching historical lows

• Having discounts at least 30% off

• Have a release date of 2021 or later

• Are organized into 10 categories based on genre

Other stats about today’s list:

• 37 games rated “Very Positive” or higher

• 18 games with over 1,000 total reviews

• 18 games released in the past 2 years

• 9 games at record-breaking discounts

• Highest discount 90% off

• Median discount 50% off

• Total savings of ~$440 across all games (normally ~$800!)

You’ve probably had some of these games on your wishlist for a long time waiting for a big sale, while there are other games that you’ve never heard of before but can finally risk taking a chance on.

Our goal is putting a spotlight on great mystery games (both old and new) while also helping you save money when buying them.

We hope you find some hidden gems in today’s list!