| All Country Flags of the World | 0 | - | 5.00 | 3,619,818 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,581 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,934 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,769 |
| Flags with Crescents | 0 | - | 4.98 | 168,077 |
| Country Flag Trivia | 0 | - | 4.81 | 56,203 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,756 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,723 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,289 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,257 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,571 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,955 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,439 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,277 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,121 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,016 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,947 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,940 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,727 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,987 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,066 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,837 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,552 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,030 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,424 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,811 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,950 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,910 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,215 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,390 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,523 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,183 |
| Flags of North and South America | 0 | - | 4.99 | 369,202 |
| Flags to Languages | 0 | - | 4.95 | 172,832 |
| Former Flags | 0 | - | 4.97 | 106,997 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,729 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,177 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,993 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,269 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,784 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,060 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,256 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,804 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,801 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,799 |
| Flag Maths | 0 | - | 4.74 | 57,696 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,759 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,105 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,552 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,485 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,340 |
| World Coats of Arms | 0 | - | 4.99 | 64,046 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,653 |
| Similar Flags #1 | 0 | - | 4.74 | 129,367 |
| Similar Flags #2 | 0 | - | 4.74 | 136,641 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,738 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,113 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,321 |
| Emoji Flags | 0 | - | 4.35 | 43,887 |
| Countries by Road Signs | 0 | - | 4.98 | 53,291 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,185 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,076 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 22,648 |
| Select the World Flags | 0 | - | 4.27 | 37,492 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,458 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,682 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,149 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,796 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,944 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,753 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,303 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,543 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,083 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,512 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,068 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,967 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,775 |
| Pixelated World Map | 0 | - | 5.00 | 142,736 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,638 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,607 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,938 |
| European Cities by Picture #2 | 0 | - | 4.45 | 38,020 |
| Boundary Waters | 0 | - | 4.92 | 88,144 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,904 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,529 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,632 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,022 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,930 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,489 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,958 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,115 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,666 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,214 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,965 |
| Geography by Picture - B | 0 | - | 4.42 | 55,471 |
| Geography by Picture - H | 0 | - | 4.50 | 58,092 |
| Geography by Picture - N | 0 | - | 4.45 | 42,086 |
| Geography by Picture - R | 0 | - | 4.56 | 40,917 |
| Geography by Picture - T | 0 | - | 4.54 | 57,721 |
| Flags of Oceania | 0 | - | 5.00 | 256,377 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,279 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,617 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,298 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,663 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,101 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,075,456 |
| Flags of WW1 | 0 | - | 4.60 | 38,082 |
| Landlocked Countries | 0 | - | 4.99 | 415,578 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 558,547 |
| Satellite Images #1 | 0 | - | 4.46 | 129,124 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,087 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,736 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,730 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,864 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,557 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,768 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,301 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,226 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,128 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,391 |
| World Capitals Quiz | 0 | - | 5.00 | 5,043,984 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,397 |
| Himalayan Countries | 0 | - | 4.95 | 136,041 |
| Andean Countries | 0 | - | 4.94 | 83,209 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,523 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,689 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,216 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,863 |
| Danube Countries | 0 | - | 4.97 | 71,283 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,025 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,730 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,909 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,850 |
| European Landlocked Countries | 0 | - | 4.99 | 145,991 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,565 |
| Countries with the Most Species | 0 | - | 4.99 | 95,358 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,693 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,276 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,446 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,077 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,730 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,097 |
| Countries in the Alps | 0 | - | 4.86 | 117,151 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,775 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,632 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,171 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,607 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,407 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,157 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,828 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,910 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,712 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,228 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,281 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,153 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,635 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,899 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,911 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,509 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,810 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,358 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,061 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,378 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,260 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,744 |
| Largest Countries By Category | 0 | - | 4.97 | 157,067 |
| Countries by Countries | 0 | - | 4.96 | 62,463 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,703 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,036 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,386 |
| Merged Country Flags | 0 | - | 4.88 | 106,229 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,362 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,307 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,233 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,971 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,732,540 |
| Merged Countries #2 | 0 | - | 4.96 | 98,622 |
| Merged Countries #6 | 0 | - | 4.90 | 72,869 |
| Merged Countries #7 | 0 | - | 4.92 | 82,112 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,911 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,558 |
| Geography by Picture - A | 0 | - | 4.39 | 60,104 |
| Geography by Picture - D | 0 | - | 4.15 | 45,538 |
| Geography by Picture - F | 0 | - | 4.31 | 50,873 |
| Geography by Picture - G | 0 | - | 4.38 | 47,841 |
| Geography by Picture - J | 0 | - | 4.16 | 38,363 |
| Geography by Picture - K | 0 | - | 4.29 | 33,042 |
| Geography by Picture - C | 0 | - | 4.31 | 56,961 |
| Geography by Picture - L | 0 | - | 4.37 | 58,818 |
| Geography by Picture - M | 0 | - | 4.14 | 40,370 |
| Geography by Picture - P | 0 | - | 4.24 | 42,332 |
| Geography by Picture - S | 0 | - | 4.38 | 46,948 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,735 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,293 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,555 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,966 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,775 |
| Longest International Borders | 0 | - | 4.99 | 264,153 |
| Countries with Three Borders | 0 | - | 4.96 | 36,296 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,715 |
