The best replacement for multiplayer is single player.

The best alternatives to multiplayer are rated as following:

★★★★★	single player
★★★★	co op
★★★	single player games
★★	campaign
★	halo reach
★	multiplayer
★	single player minecraft
★	singleplayer
★	mw3
★	modern warfare 3 multiplayer
★	battlefield 4 multiplayer
★	bo2
★	black ops
★	zombies
	assassin's creed brotherhood
	cod multiplayer
	call of duty multiplayer

Your alternative for multiplayer is not listed? Suggest!

Speaking about multiplayer, one probably shouldn't forget about cracked minecraft.

Other search terms related to multiplayer and their ratings are:

★★★★★	cracked minecraft
★★★★	gamespy
★★★	minecraft
★★★	gba emulator
★★	wii u gamepad
★★	premium account
★	emulator

You have in mind a companion for multiplayer and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of multiplayer in all years. Click on graph for more.

multiplayer

single player

co op