| All Country Flags of the World | 0 | - | 5.00 | 3,599,253 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,816 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,143 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,482 |
| Flags with Crescents | 0 | - | 4.98 | 167,466 |
| Country Flag Trivia | 0 | - | 4.81 | 55,878 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,347 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,419 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,845 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,990 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,645 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,118 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,775 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,306 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,466 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,541 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,901 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,549 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,568 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,317 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,678 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,745 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,536 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,231 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,769 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,237 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,645 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,727 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,350 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,657 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,709 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,933 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,017 |
| Flags of North and South America | 0 | - | 4.99 | 366,722 |
| Flags to Languages | 0 | - | 4.95 | 172,434 |
| Former Flags | 0 | - | 4.97 | 106,629 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,600 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,145 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,749 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,532 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,688 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,057 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,031 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,581 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,466 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,402 |
| Flag Maths | 0 | - | 4.78 | 57,670 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,313 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,930 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,429 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,344 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,265 |
| World Coats of Arms | 0 | - | 4.99 | 63,830 |
| Similar Flags #1 | 0 | - | 4.74 | 129,052 |
| Similar Flags #2 | 0 | - | 4.74 | 136,317 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,332 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,731 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,814 |
| Emoji Flags | 0 | - | 4.35 | 43,804 |
| Countries by Road Signs | 0 | - | 4.98 | 53,066 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,997 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,982 |
| Select the World Flags | 0 | - | 4.27 | 37,390 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,269 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,548 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,017 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,662 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,794 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,667 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,206 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,340 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,966 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,362 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,770 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,779 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,183 |
| Pixelated World Map | 0 | - | 5.00 | 142,387 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,933 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,355 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,662 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,923 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,239 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,233 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,812 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,706 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,246 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,903 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,031 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,541 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,399 |
| Geography by Picture - H | 0 | - | 4.49 | 58,035 |
| Geography by Picture - N | 0 | - | 4.45 | 42,042 |
| Geography by Picture - R | 0 | - | 4.55 | 40,872 |
| Geography by Picture - T | 0 | - | 4.54 | 57,670 |
| Flags of Oceania | 0 | - | 5.00 | 254,990 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,799 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,399 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,036 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,365 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,754 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,893,657 |
| Flags of WW1 | 0 | - | 4.60 | 37,918 |
| Landlocked Countries | 0 | - | 4.99 | 413,303 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,083 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,990 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,970 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,636 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,637 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,798 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,329 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,139 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,963 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,552 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,906 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,396 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,446 |
| Himalayan Countries | 0 | - | 4.95 | 135,232 |
| Andean Countries | 0 | - | 4.94 | 82,765 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,175 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,114 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,846 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,550 |
| Danube Countries | 0 | - | 4.97 | 71,047 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,715 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,504 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,402 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,328 |
| European Landlocked Countries | 0 | - | 4.99 | 145,718 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,148 |
| Countries with the Most Species | 0 | - | 4.99 | 95,228 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,290 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,941 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,921 |
| Countries in the Alps | 0 | - | 4.87 | 116,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,527 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,189 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,986 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,391 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,117 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,971 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,532 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,726 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,113 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,022 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,183 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,024 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,419 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,723 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,001 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,612 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,239 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,736 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,095 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,540 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,576 |
| Largest Countries By Category | 0 | - | 4.97 | 156,702 |
| Countries by Countries | 0 | - | 4.96 | 62,228 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,329 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,952 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,318 |
| Merged Country Flags | 0 | - | 4.88 | 105,981 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,561 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,075 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,029 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,723 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,906 |
| Merged Countries #2 | 0 | - | 4.96 | 98,440 |
| Merged Countries #6 | 0 | - | 4.91 | 72,684 |
| Merged Countries #7 | 0 | - | 4.92 | 81,926 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,678 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,474 |
| Geography by Picture - A | 0 | - | 4.39 | 60,042 |
| Geography by Picture - D | 0 | - | 4.15 | 45,481 |
| Geography by Picture - F | 0 | - | 4.31 | 50,819 |
| Geography by Picture - G | 0 | - | 4.38 | 47,780 |
| Geography by Picture - J | 0 | - | 4.16 | 38,332 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,899 |
| Geography by Picture - L | 0 | - | 4.37 | 58,748 |
| Geography by Picture - M | 0 | - | 4.14 | 40,341 |
| Geography by Picture - P | 0 | - | 4.24 | 42,293 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,525 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,224 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,428 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,320 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,592 |
| Longest International Borders | 0 | - | 4.99 | 263,490 |
| Countries with Three Borders | 0 | - | 4.96 | 36,166 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,585 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,643 |
