I have to admit that i had an addiction on achievements (2018), i really loved the number of completed games and achievement total increase, so i bought "achievement hunter" games like dinasaur hunt, achievement hunter, achievement clicker and similar; i don't know if them count as cheating. i cheated other games to keep increasing the numbers and to increase my adiction too. I will list the ones i remember, i don't know if i can list all of them cause i really don't remember. If you found more games, i would love know so i can relock them too.
*adventure capitalist: i played it, half of the achievements are legit but it bored me the slow the game is, so i cheated. I am going to re-lock all of the achievements and start a new game 100% legit
*oik: i didnt like it, cause it is so so so similar to zup games and zups bored me, that's why i cheated in this one
*Lines X Free: i just wanted the achievs to personalize my steam profile
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*Antenna: just 5 achievements but +1 in completed games -> monster of addiction
*Anarchy Arcade: same reason, addiction.
*Away (1 achiev) same reason, i am a monster
*Iron Sky Invasion: addiction
*Survival Zombies The Inverted Evolution: addiction
*Fighter of evil: same...
*Oik 2
*Running through russia
*Tower Climber
*Sky jumper
*Blonde driver
*Emily is away: this REALLY i dont know, cause i played it and i like it but addiction made me do it
*Minimalism
*Distant space 2
*ZUP! XS, ZUP ZERO 2, ZUP F, ZUP 9: i dont know which was cheated, it may be all of them...
Thank you very much for your time and this opportunity <3