After the fall of bg, ug and ggn these are the trackers i found which can be possible replacement for those dead trackers.
Please post here any other games tracker worth mentioning.

#1

• Tracker Name: blackcats-games
  
• Games: New as well as old games
  
• Tracker Signup: open signup /Invite
  
• Signup Link: http://www.blackcats-games.net
  
• Tracker Link: https://www.blackcats-games.net/signup.php
  

#2

• Tracker Name: PleasureDome
  
• Games: Old School
  
• Tracker Signup: open signup
  
• Signup Link: Pleasuredome Tracker - Account Management
  
• Tracker Link: Pleasuredome Tracker - Index
  

#3

• Tracker Name: Xbox-Sky.cc
• Games: New Generations , XBOX360 Games
  
• Tracker Signup: Invite only
  
• Signup Link: http://bt.xbox-sky.cc:8888/register.php
  
• Tracker Link: http://bt.xbox-sky.cc:8888/
  

#4

• Tracker Name: Flux-Gamer
• Games: New Generations
  
• Tracker Signup: open signup
  
• Signup Link: Flux-GAMER : Signup
  
• Tracker Link: http://www.flux-gamer.net
  

#5

• Tracker Name: SeedGames
• Games: New Generations
  
• Tracker Signup: open signup
  
• Signup Link: SeedGames :: Register!
  
• Tracker Link: SeedGames :: Logga in
  

#6

• Tracker Name: X360-Club
• Games: New Generations , XBOX360 Games
  
• Tracker Signup: open signup
  
• Signup Link: X360-Club.org :: Ïðàâèëà òðåêåðà :: Ñêà÷àòü áåñïëàòíî èãðû äëÿ xbox 360 òîððåíò òðåêêåð
  
• Tracker Link: X360-Club.org :: Ãëàâíàÿ :: Ñêà÷àòü áåñïëàòíî èãðû äëÿ xbox 360 òîððåíò òðåêêåð
  

#7

• Tracker Name: GameUpDates
• Games: PC updates and patches
  
• Tracker Signup: open signup
  
• Signup Link: Signup - gameupdates.org
  
• Tracker Link: gameupdates.org - Download game patch, demo, trailer via BitTorrent fast
  

#8

• Tracker Name: GamesTorrents
• Games: New Generations
  
• Tracker Signup: open signup
  
• Signup Link: - GamesTorrents
  
• Tracker Link: GamesTorrents - Bittorrent Juegos PC PS2 PSP XBOX360
  

#9

• Tracker Name: Games.Bitshock
• Tracker Type: New Generations
  
• Games: New Generations
  
• Tracker Signup: open signup
  
• Signup Link: http://games.bitshock.org
  
• Tracker Link: http://games.bitshock.org