Åland Islands
AX
Afghanistan
AF
Albania
AL
Algeria
DZ
American Samoa
AS
Andorra
AD
Angola
AO
Anguilla
AI
Antarctica
AQ
Antigua & Barbuda
AG
Aruba
AW
Australia
AU
Austria
AT
Bahamas
BS
Bahrain
BH
Bangladesh
BD
Barbados
BB
Belgium
BE
Belize
BZ
Benin
BJ
Bermuda
BM
Bhutan
BT
Bolivia
BO
Caribbean Netherlands
BQ
Bosnia & Herzegovina
BA
Botswana
BW
Bouvet Island
BV
British Indian Ocean Territory
IO
Brunei
BN
Bulgaria
BG
Burkina Faso
BF
Burundi
BI
Cambodia
KH
Cameroon
CM
Canada
CA
Cape Verde
CV
Cayman Islands
KY
Central African Republic
CF
Chad
TD
Christmas Island
CX
Cocos (Keeling) Islands
CC
Comoros
KM
Congo - Brazzaville
CG
Cook Islands
CK
Côte d’Ivoire
CI
Croatia
HR
Cuba
CU
Curaçao
CW
Cyprus
CY
Czechia
CZ
Congo - Kinshasa
CD
Denmark
DK
Djibouti
DJ
Dominica
DM
Dominican Republic
DO
Timor-Leste
TL
Ecuador
EC
Egypt
EG
El Salvador
SV
Equatorial Guinea
GQ
Eritrea
ER
Estonia
EE
Ethiopia
ET
Falkland Islands
FK
Faroe Islands
FO
Fiji
FJ
Finland
FI
France
FR
French Guiana
GF
French Polynesia
PF
French Southern Territories
TF
North Macedonia
MK
Gabon
GA
Gambia
GM
Germany
DE
Ghana
GH
Gibraltar
GI
Greece
GR
Greenland
GL
Grenada
GD
Guadeloupe
GP
Guam
GU
Guatemala
GT
Guernsey
GG
Guinea
GN
Guinea-Bissau
GW
Guyana
GY
Haiti
HT
Heard & McDonald Islands
HM
Honduras
HN
Hungary
HU
Iceland
IS
Indonesia
ID
Iran
IR
Iraq
IQ
Ireland
IE
Isle of Man
IM
Israel
IL
Italy
IT
Jamaica
JM
Japan
JP
Jersey
JE
Jordan
JO
Kenya
KE
Kiribati
KI
Kuwait
KW
Laos
LA
Latvia
LV
Lebanon
LB
Lesotho
LS
Liberia
LR
Libya
LY
Liechtenstein
LI
Lithuania
LT
Luxembourg
LU
Macao SAR China
MO
Madagascar
MG
Malawi
MW
Malaysia
MY
Maldives
MV
Mali
ML
Malta
MT
Marshall Islands
MH
Martinique
MQ
Mauritania
MR
Mauritius
MU
Mayotte
YT
Micronesia
FM
Monaco
MC
Mongolia
MN
Montenegro
ME
Montserrat
MS
Morocco
MA
Mozambique
MZ
Myanmar (Burma)
MM
Namibia
NA
Nauru
NR
Nepal
NP
Netherlands
NL
New Caledonia
NC
New Zealand
NZ
Nicaragua
NI
Niger
NE
Nigeria
NG
Niue
NU
Norfolk Island
NF
North Korea
KP
Northern Mariana Islands
MP
Norway
NO
Oman
OM
Pakistan
PK
Palau
PW
Palestinian Territories
PS
Panama
PA
Papua New Guinea
PG
Paraguay
PY
Pitcairn Islands
PN
Poland
PL
Portugal
PT
Puerto Rico
PR
Qatar
QA
Réunion
RE
Romania
RO
Rwanda
RW
St Kitts & Nevis
KN
St Lucia
LC
St Vincent & the Grenadines
VC
Samoa
WS
San Marino
SM
São Tomé & Príncipe
ST
Saudi Arabia
SA
Senegal
SN
Serbia
RS
Seychelles
SC
Sierra Leone
SL
Sint Maarten
SX
Slovakia
SK
Slovenia
SI
Solomon Islands
SB
Somalia
SO
South Africa
ZA
South Georgia & South Sandwich Islands
GS
South Korea
KR
South Sudan
SS
Spain
ES
Sri Lanka
LK
St Barthélemy
BL
St Helena
SH
St Martin
MF
St Pierre & Miquelon
PM
Sudan
SD
Suriname
SR
Svalbard & Jan Mayen
SJ
Eswatini
SZ
Sweden
SE
Switzerland
CH
Syria
SY
Tanzania
TZ
Togo
TG
Tokelau
TK
Tonga
TO
Trinidad & Tobago
TT
Tunisia
TN
Turks & Caicos Islands
TC
Tuvalu
TV
Uganda
UG
United Arab Emirates
AE
United Kingdom
GB
United States
US
US Outlying Islands
UM
Vanuatu
VU
Vatican City
VA
Venezuela
VE
British Virgin Islands
VG
US Virgin Islands
VI
Wallis & Futuna
WF
Western Sahara
EH
Yemen
YE
Zambia
ZM
Zimbabwe
ZW
Description
Oxygen is a survival city-builder where every breath is a resource and every decision shapes whether your settlement endures. Build a fragile haven in a hostile world, manage life-support infrastructure, and keep your people alive as oxygen, power, and water become the true currency of progress.
Create an efficient colony by planning districts, expanding production chains, and balancing growth with safety. Set up generators, filtration, and distribution networks, then optimize logistics so critical supplies reach homes, hospitals, and workplaces before shortages spiral into disaster. As your population increases, so do their needs—food, shelter, healthcare, and stable air—forcing you to prioritize upgrades and emergency reserves.
Explore the surrounding wasteland for resources and opportunities. Send expeditions to uncover materials, technology, and new locations, but be ready to adapt when hazards strike. Environmental threats, unexpected events, and system failures can collapse a thriving city in minutes unless you maintain redundancy and react fast.
Main features:
- Oxygen-focused survival management with interconnected life-support systems
- City-building and production chains that reward smart planning and optimization
- Expeditions and exploration to secure resources and unlock progress
- Dynamic crises and tough choices that test your leadership under pressure
Whether you build a compact, efficient hub or a sprawling industrial network, Oxygen challenges you to master infrastructure, logistics, and survival—because in this world, running out of air is the final mistake.