FPS Proof

Games · Strategy

Titles: 41,435

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OPEN GUARD

2026 · Indie, Simulation

Open Headcount: A Corporate-Hell Roguelike

2026 · Indie, Strategy

Open Late

2026 · Casual, Indie

Open The Gate: Just A Little

2026 · Casual, Indie

Open The Gates!

2022 · Indie, Simulation

Open Wheel Manager

2019 · Racing, Sports

Opentool Tower Defense

Strategy

Operation : Strike & Secure

2024 · Action, Indie

Operation Anti-Robot

2026 · Action, Adventure

Operation Armstrong

2021 · Action, Indie

Operation Dartness

Indie, Simulation

Operation HOPE - Tower Defense

Strategy

Operation Osama Bin Laden

2021 · Action, Indie

Operation Outsmart

Action, Adventure

Operation Red Dragon

2017 · Action, Adventure

Operation S

2022 · Casual, Strategy

Operation Sheep Defense

2017 · Indie, Strategy

Operation swat

2017 · Action, Strategy

Operation Tide

Action, Adventure

Operation Valderon

2019 · Indie, Strategy

Operation Valor

2023 · Action, Casual

Operation: All Out

2026 · Action, Strategy

Operation: Black Genesis - The Immortal Trials

2026 · Action, Adventure

Operation: Doomed Peter

2026 · Adventure, RPG

Operation: Forge the Deep

2022 · Casual, Simulation

Operation: Harsh Doorstop

2023 · Action, Casual

Operation: Horumus

2026 · Casual, Indie

Operation: New Earth

2016 · MMO, Simulation

Operation: Peons

Casual, Indie

Operation: Surface Takeover

2025 · Action, Indie

Operation: VICUS

2022 · Casual, Indie

Operative Division

2026 · Action, Indie

OPERATIVES: Revolve

2026 · Strategy

Operator

2020 · Simulation, Strategy

Ophidia

2017 · Action, Adventure

Opie: The Defender

Action, Adventure

Opolution

2026 · Indie, Strategy

Oppressor of Dreams

Action, Adventure

Ops Normal: Airline Operations Control Center

Indie, Simulation

Optica

2018 · Casual, Indie

Opus Cortex: A Nonogram Puzzle Story

2025 · Casual, Indie

Oracle 5000

2025 · Casual, Indie

ORACLE: Humanity, Automated

2026 · Indie, Simulation

Oraiah

2020 · Indie, Simulation

Oraxum Trials

2022 · Casual, Indie

Orb Devils

2025 · RPG, Strategy

Orb of Aeternum

2024 · Casual, Indie

ORB27

2026 · Indie, Strategy