These games with co-op mode are in the top 100 Paid iPad Apps right now (10/11/2015):
iPhone Top 100 Paid Apps with Co-Op Mode:
#1 Minecraft: Pocket Edition
$
#5 Terraria
$
#12 Bloons TD 5 HD
$
#94 Call of Duty: Black Ops Zombies
$
These games with co-op mode are in the top 100 Paid Apps right now (12/9/2013):
iPhone Top 100 Paid Apps with Co-Op Mode:
#3. Minecraft – Pocket Edition $6.99
#9. Pixel Gun 3D $.99
#14. Bloons TD 5 $2.99
#27. Terraria $4.99
#78. Double Dragon Trilogy $2.99
#87 Zombieville USA 2 $.99
iPad Top 100 Paid Apps with Co-Op Mode:
#2. Minecraft – Pocket Edition $6.99
#7. Pixel Gun 3D $.99
#17. Terraria $4.99
#32. Bloons TD 5 HD $4.99
#38. Double Dragon Trilogy $2.99
#76. Drawing Together! $2.99
#98. Adventure With Companions $5.99