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
  

fano.lv and iptorrents is general trackers, but they have good games content.

Originally Posted by LEO

fano.lv and iptorrents is general trackers, but they have good games content.

As well as ncore, they have good game section.

Tracker Name: Tapochek.net
Games: New as well as old games
Tracker Signup: open signup / Invite
Signup Link: ÐÅÃÈÑÒÐÀÖÈß ÂÎÇÌÎÆÍÀ ÒÎËÜÊÎ ÏÎ ÈÍÂÀÉÒÀÌ (ÏÐÈÃËÀØÅÍÈßÌ). :: Tapochek.net
Tracker Link: Ãëàâíàÿ :: Tapochek.net