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Open World Games Under £20

The best open world PC games available for under £20. Explore vast worlds without breaking the bank — prices compared across all major UK stores.

94 of the 96 games shown are discounted right now. Cheapest is Anno 1503 A.D. at £1.05, average £8.11. Prices last compared 2026-10-13.

How we build this list

Games tagged open world or sandbox on Steam whose cheapest tracked price is under £20. Ordered by the size of the current discount, so the biggest savings come first. 102 games match, and the top 96 are shown here. Prices are compared across every store we track and refresh daily.

Showing 48 of 96 games from 102 matching this category.

Kingdom: New Lands Royal Edition

Kingdom: New Lands Royal Edition

strategy
simulation
fantasy

Cheapest at GOG · 2 stores compared

save £12.24

Men of War: Assault Squad GOTY Edition

Men of War: Assault Squad GOTY Edition

strategy
realtime
historical

Cheapest at GOG

save £11.70

Moviehouse Save the World Edition

Moviehouse Save the World Edition

simulation
strategy
managerial

Cheapest at GOG

save £12.23

Port Royale 4 - Extended Edition

Port Royale 4 - Extended Edition

strategy
simulation
historical

Cheapest at GOG · 2 stores compared

save £34.00

The Original Strife: Veteran Edition

The Original Strife: Veteran Edition

shooter
scifi
rpg

Cheapest at GOG · 2 stores compared

save £6.41

King's Bounty Classic Collection

King's Bounty Classic Collection

rpg
turnbased
fantasy

Cheapest at GOG

save £31.40

Men of War: Vietnam Special Edition

Men of War: Vietnam Special Edition

strategy
realtime
historical

Cheapest at GOG · 3 stores compared

save £6.30

Rise of the Tomb Raider: 20 Year Celebration

Rise of the Tomb Raider: 20 Year Celebration

action
adventure
survival

Cheapest at GOG · 3 stores compared

save £21.24

Prince of Persia Bundle

Prince of Persia Bundle

action
adventure
fantasy

Cheapest at GOG

save £28.28

Europa Universalis IV: Starter Edition (2024)

Europa Universalis IV: Starter Edition (2024)

strategy
realtime
historical

Cheapest at GOG

save £40.80

Filament: Marmalade Edition

Filament: Marmalade Edition

strategy
puzzle
exploration

Cheapest at GOG · 2 stores compared

save £13.40

Hotel Giant Bundle

Hotel Giant Bundle

strategy
simulation
managerial

Cheapest at GOG

save £7.20

Omerta: City of Gangsters (4 DLCs included)

Omerta: City of Gangsters (4 DLCs included)

strategy
historical
economic

Cheapest at GOG

save £8.80

Omerta: City of Gangsters Gold Edition

Omerta: City of Gangsters Gold Edition

strategy
historical
economic

Cheapest at GOG · 2 stores compared

save £15.20

Prey: Digital Deluxe Edition

Prey: Digital Deluxe Edition

action
fpp
scifi

Cheapest at GOG

save £28.00

Production Line

Production Line

simulation
strategy
managerial

Cheapest at GOG · 2 stores compared

save £15.60

Thief™ 3: Deadly Shadows

Thief™ 3: Deadly Shadows

action
simulation
stealth

Cheapest at GOG

save £6.00

Tomb Raider Definitive Survivor Trilogy

Tomb Raider Definitive Survivor Trilogy

action
adventure
survival

Cheapest at GOG · 2 stores compared

save £33.81

Build An Empire Collection

Build An Empire Collection

simulation
building
managerial

Cheapest at GOG

save £48.76

The Axis Unseen - Hunter Bundle

The Axis Unseen - Hunter Bundle

action
simulation
horror

Cheapest at GOG

save £22.24

Anno 1503 A.D.

Anno 1503 A.D.

simulation
strategy
managerial

Cheapest at GOG

save £3.24

ENDLESS Space™ 2 - Definitive Edition

ENDLESS Space™ 2 - Definitive Edition

strategy
turnbased
scifi

Cheapest at Humble Bundle · 2 stores compared

save £60.00

Endzone 2: Deluxe Edition

Endzone 2: Deluxe Edition

simulation
strategy
survival

Cheapest at GOG

save £22.87

Endzone 2 Ultimate Supporter Bundle

Endzone 2 Ultimate Supporter Bundle

simulation
strategy
survival

Cheapest at GOG

save £25.74

Europa Universalis II

Europa Universalis II

strategy
realtime
historical

Cheapest at GOG

save £5.94

Hearts of Iron

Hearts of Iron

strategy
realtime
historical

Cheapest at GOG

save £5.94

Hearts of Iron II: Complete

Hearts of Iron II: Complete

strategy
realtime
historical

Cheapest at GOG

save £9.60

Lords and Bards Bundle

Lords and Bards Bundle

simulation
strategy
sandbox

Cheapest at GOG · 2 stores compared

save £18.03

Per Aspera Deluxe Edition

Per Aspera Deluxe Edition

simulation
strategy
managerial

Cheapest at GOG · 2 stores compared

save £20.78

RollerCoaster Tycoon Bundle

RollerCoaster Tycoon Bundle

simulation
building
managerial

Cheapest at GOG

save £28.60

The Lord of The Rings: Gollum™ - Precious Edition

The Lord of The Rings: Gollum™ - Precious Edition

action
adventure
stealth

Cheapest at GOG · 2 stores compared

save £39.00

Anno 1602 A.D.

Anno 1602 A.D.

simulation
realtime
fantasy

Cheapest at GOG

save £6.44

Assassin's Creed®: Director's Cut

Assassin's Creed®: Director's Cut

action
adventure
historical

Cheapest at GOG · 2 stores compared

save £6.44

Europa Universalis

Europa Universalis

strategy
realtime
historical

Cheapest at GOG

save £3.56

Europa Universalis: Rome Gold

Europa Universalis: Rome Gold

strategy
realtime
historical

Cheapest at GOG

save £6.35

Hello Neighbor 2 - Deluxe Edition

Hello Neighbor 2 - Deluxe Edition

action
horror
puzzle

Cheapest at GOG · 2 stores compared

save £37.00

Lords and Villeins: The Great Houses Edition

Lords and Villeins: The Great Houses Edition

simulation
strategy
sandbox

Cheapest at GOG

save £18.14

Magic Carpet Plus™

Magic Carpet Plus™

shooter
action
fantasy

Cheapest at GOG

save £3.56

Patrician IV Gold

Patrician IV Gold

strategy
simulation
historical

Cheapest at GOG

save £12.74

The Escapists 2: Game of the Year Edition

The Escapists 2: Game of the Year Edition

strategy
simulation
sandbox

Cheapest at GOG

save £17.24

Anno 1701 A.D.

Anno 1701 A.D.

simulation
strategy
managerial

Cheapest at GOG

save £6.34

Industry Giant 4.0 - Digital Supporter Edition

Industry Giant 4.0 - Digital Supporter Edition

strategy
simulation
modern

Cheapest at GOG

save £19.60

Industry Giant 4.0 - Official Guide Edition

Industry Giant 4.0 - Official Guide Edition

strategy
simulation
modern

Cheapest at GOG

save £18.90

Tropico 6 El Prez Edition

Tropico 6 El Prez Edition

strategy
simulation
modern

Cheapest at GOG · 2 stores compared

save £28.00

Beyond Good & Evil™

Beyond Good & Evil™

action
tpp
scifi

Cheapest at GOG

save £3.00

Imperator: Rome - Centurion Bundle

Imperator: Rome - Centurion Bundle

strategy
realtime
historical

Cheapest at GOG

save £11.90

Project Highrise: Architect's Edition

Project Highrise: Architect's Edition

simulation
building
managerial

Cheapest at GOG · 2 stores compared

save £15.20

Total War: Attila DLC Collection

Total War: Attila DLC Collection

strategy
action
historical

Cheapest at GOG

save £14.20

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