market slotSlot Machine Market Size. The slot machine market was estimated at USD 16.8 billion in 2025 and is expected to reach USD 28.3 billion by 2034, growing at aIn terms of revenue, the global slot machines market size was valued at around USD 9.5 billion in 2022 and is projected to reach USD 13.4 billion, by 2030. The global slot machines market is