Games with Area control

On the Hunt

30–45m2–6p2022

On to Berlin!

240–360m2p0

On Top

30m2–4p2008

Onward

45–90m2–4p2025

€66

Onward to Venus

90–120m2–5p2014

Operation: Barbarossa

240m2–3p2012

Operation Battleaxe: Wavell vs. Rommel, 1941

120m2p2013

Operation Causeway: Formosa 1944

60m2p2022

Operation Hercules

60–360m2–3p2017

Operation Iceberg: Battle of Okinawa

180m2p2011

Operation: Kindergarten

45–60m2–4p2015

Operation Pointblank: Strategic Bombing Campaign Feb-Dec 1944

60–120m2p2017

Operation Storm: Stalin's Barbarossa

2p2023

Orange Swan

60–500m1–4p2022

Orange Swan: Dai Tō-A Sensō

90m1–5p2024

Orb Hunters

15–30m2–5p2019

Orbital

90m2–4p2014

Orbitalis

10m2p2008

Orbita Victaris

30–60m2–4p2020

Orbit Battle

20–45m2p2018

ORC

5–10m2p2017

Orchards

45m2–4p2020

Orconomics

60m2–5p0

Orconomics (Second Edition)

25–40m2–5p2022

Orcwars

120–150m2–4p1988

Order of the Gilded Compass

30–60m2–5p2016

Order of the Gilded Compass: Coveted Artifacts/An Ally Inside expansion

30–60m2–5p2016

Order of the Gilded Compass: Tools of Power/Treasure Fragments expansion

30–60m2–5p2016

Order & Opportunity: Making of the Post-Cold War World Order

180m1–4p

Origin: Ranger Die

45m2–4p2013

Origins of World War II

60m2–5p1971

Orphan Black: The Card Game

30m3–6p2015

Our Sputnik

15–60m2p1961

Outfoxed!

20m2p2017

Outlive: Complete Edition

45–90m1–4p2023

Outlive: Underwater

40–110m1–4p2018