Steel World (Undying Mercenaries book 1)
Dust World (Undying Mercenaries book 2)
Tech World (Undying Mercenaries book 3)
Machine World (Undying Mercenaries book 4)
Death World (Undying Mercenaries book 5)
Home World (Undying Mercenaries book 6)
Rogue World (Undying Mercenaries book 7)
Blood World (Undying Mercenaries book 8)
Dark World (Undying Mercenaries book 9)
Storm World (Undying Mercenaries book 10)
Armor World (Undying Mercenaries book 11)
Clone World (Undying Mercenaries book 12)
Glass World (Undying Mercenaries book 13)