Wyvia
Steam: $9.99GOG: $8.99
X Rebirth
Steam: $29.99GOG: $5.99
X-COM: Apocalypse
Steam: $4.99GOG: $1.25
X-COM: Enforcer
Steam: $4.99GOG: $1.25
X-COM: Interceptor
Steam: $4.99GOG: $1.25
X-COM: Terror From the Deep
Steam: $4.99GOG: $1.49
X-COM: UFO Defense
Steam: $4.99GOG: $1.49
X-Morph: Defense
Steam: $19.99GOG: $5.99
X-Out: Resurfaced
Steam: $19.99GOG: $19.99
X-Racing
Steam: $5.99GOG: $0.59
X2: The Threat
Steam: $4.99GOG: $0.99
X3: Reunion
Steam: $9.99GOG: $1.99
X4: Foundations
Steam: $49.99GOG: Free
XCOM® 2
Steam: $19.99GOG: $2.99
XCOM®: Chimera Squad
Steam: $9.99GOG: $2.99
Xeno Crisis
Steam: $19.99GOG: $19.99
Xenonauts
Steam: $24.99GOG: $4.99
XF5700 Mantis Experimental Fighter
Steam: $6.99GOG: $1.75
XIII
Steam: $19.99GOG: $1.95
XIII Century – Gold Edition
Steam: $4.99GOG: $0.75
Xuan-Yuan Sword VII
Steam: $34.99GOG: Free
Yaga
Steam: $24.99GOG: $4.99
Yakuza 0
Steam: FreeGOG: $11.99
Yakuza 3 Remastered
Steam: FreeGOG: $11.99