My TOP 10 List of the hardest 100 % achievement games i've completed.

01 - Hare In The Hat
- It has a few of the hardest and annoying puzzles that were ever created.

02 - Alien Swarm
- Brutal difficulty is really brutal. Nothing more to say.

03 - Duke Nukem Forever
- How unfair can a game become on the highest difficulty?

04 - Deadly Rooms of Death
- 300 Achievements, each one a Challenge. Some are easy, some are a pure nightmare.

05 - Mitch: Berry Challenge
- Some time challenges are really hard and it has one insane bossfight at the end.

06 - Spiral Knights
- A few achievements are really, really tough to get and require a lot of preparation.

07 - Prelogate
- Some may say it's rather easy. But i found it really hard to optimize every solution.

08 - Dead Horde
- Watch your step. Watch your back. Watch your Ammo. Pray and hope for the best.

09 - Spy Chameleon - RGB Agent
- It's all about saving time. Amazing and challenging. A great game.

10 - Prison Run and Gun
- Very interesting puzzle/action plattformer. Not too difficult, but it has it's moments.

My TOP 10 List of the worst games, i've ever played.

01 - Sleengster 2 -->Review<--

02 - Sleengster -->Review<--

03 - Brilliant Bob -->Review<--

04 - Devils Share -->Review<--

05 - The Slaughtering Grounds -->No Review yet<--

06 - Apartment 666 -->Review<--

07 - TERROR LAB -->No Review yet<--

08 - Crash Time II -->Review<--

09 - Primal Fears -->No Review yet<--

10 - Overcast - Walden and the Werewolf -->Review<--