Starting from one of the simplest to get, and yet listed as one of the hardest, we have Microsoft Sudoku for Windows 8, purchasable and playable on Windows 10 PCs. This game has a list of 20 achievements, but seemingly due to a glitch, they’re all listed as extremely rare, with less than 1 in 1000 players earning them.
TrueAchievements.com lists the completion at a whopping 96.32%, with a 17.22% completion on known Xbox Profiles.
To gain this achievement, all you need to do is download the game on your PC, run the game, and beat any normal level at any difficulty.
Gaining this achievement will net you 1 new achievement to your totals, 10 points onto your Gamerscore, 10 points onto your TrueAchievement score. Furthermore, if you are signed up for Microsoft Rewards on your Xbox One, you can use this to turn in for some quests, usually “Earn Any Achievement” quests.
Pick up the game here for some easy achievements.