As a fellow user pointed out, apparently I missed the first DONG ever! Sorry, here it is
1. The Cell: http://www.gameshed.com/Adventure-Games/The-Cell/play.html
NOT WORKING ANYMORE
2. The House Horror: http://www.gamezhero.com/games/thehouse
"Click on different things and try to make sense out of the clues to escape."
3. Exmortis: http://www.gameson.com.br/Jogos-Online/Terror/Exmortis.html
"You wake up for unknown reasons in the middle of the woods."
4. Purgatorium: http://www.gameson.com.br/Jogos-Online/Terror/Purgatorium.html
"Figure out how to escape from the room and learn about the dark event that ocurred here."
5. Bright in the Screen: http://www.newgrounds.com/portal/view/469443
"You learn the rules as you play, avoid the red freaks."
6. Closure: http://www.newgrounds.com/portal/view/480006
"The orb that you carry brings the light, anything that the light touches exists, nothing else does."