The best replacement for gta 4 is red dead redemption.

The best alternatives to gta 4 are rated as following:
★★★★★  red dead redemption
★★★★  gta 5
★★★★  saints row 2
★★★★  san andreas
★★★  gta san andreas
★★★  saints row 3
★★★  mafia 2
★★  sleeping dogs
★★  episodes from liberty city
★★  just cause 2
★★  gta 5 graphics
★  gta 3
★  gta 5 map
★  gta 5 story
★  rdr
★  gta 5 driving
★  halo 3
★  mgs4
★  episodes from liberty city which is better
  uncharted 2
  gta 4 complete edition
  gta episodes from liberty city
  eflc
  la noire
  assassins creed 2
  mgs 4
  fallout 3
  san andreas better
  ballad of gay tony
  godfather 2
  max payne 3

Your alternative for gta 4 is not listed? Suggest!
Speaking about gta 4, one probably shouldn't forget about episodes from liberty city.

Other search terms related to gta 4 and their ratings are:
★★★★★ episodes from liberty city
★ logitech controller
You have in mind a companion for gta 4 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of gta 4 in all years. Click on graph for more.
gta 4
red dead redemption
gta 5