| All Country Flags of the World | 0 | - | 5.00 | 3,657,026 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,536,046 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,311 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,047 |
| Flags with Crescents | 0 | - | 4.98 | 169,346 |
| Country Flag Trivia | 0 | - | 4.81 | 56,935 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,626 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,388 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,251 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,198 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,150 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,727 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,504 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,749 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,252 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,135 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,164 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,863 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,982 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,429 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,400 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,334 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,434 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,536 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,315 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 99,000 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,441 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,673 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,059 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,306 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,346 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,667 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,888 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,988 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,792 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,401 |
| Flags of North and South America | 0 | - | 4.99 | 372,593 |
| Flags to Languages | 0 | - | 4.95 | 173,535 |
| Former Flags | 0 | - | 4.97 | 107,615 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,905 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,480 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,383 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,004 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,931 |
| 20 Random Country Flags | 0 | - | 4.99 | 611,391 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,659 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,092 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,428 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,445 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,227 |
| Flag Maths | 0 | - | 4.64 | 57,755 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,464 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,423 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,776 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,718 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,474 |
| World Coats of Arms | 0 | - | 4.99 | 64,433 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,459 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,666 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,263 |
| Similar Flags #1 | 0 | - | 4.75 | 129,922 |
| Similar Flags #2 | 0 | - | 4.74 | 137,218 |
| Emoji Flags | 0 | - | 4.35 | 44,056 |
| Countries by Road Signs | 0 | - | 4.98 | 53,733 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,535 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,238 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,621 |
| Select the World Flags | 0 | - | 4.27 | 37,705 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,896 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,875 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,620 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,352 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,047 |
| Countries by Satellite Image #4 | 0 | - | 4.62 | 67,138 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,890 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,457 |
| Countries by Picture #1 | 0 | - | 4.53 | 99,363 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,351 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,779 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,280 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,703 |
| Pixelated World Map | 0 | - | 5.00 | 143,292 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,417 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,038 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,571 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,421 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,181 |
| Cities by Satellite #1 | 0 | - | 4.37 | 80,992 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,054 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,326 |
| Countries by Picture #2 | 0 | - | 4.37 | 70,051 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,407 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,106 |
| Geography by Picture - B | 0 | - | 4.42 | 55,589 |
| Geography by Picture - H | 0 | - | 4.50 | 58,211 |
| Geography by Picture - N | 0 | - | 4.45 | 42,191 |
| Geography by Picture - R | 0 | - | 4.56 | 41,012 |
| Geography by Picture - T | 0 | - | 4.54 | 57,826 |
| Flags of Oceania | 0 | - | 5.00 | 258,675 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,145 |
| Flags of WW1 | 0 | - | 4.60 | 38,344 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 62,961 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,778 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,105 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,652 |
| Boundary Waters | 0 | - | 4.92 | 88,427 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,124 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,003 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,330 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,409 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,339 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,394,485 |
| Landlocked Countries | 0 | - | 4.99 | 419,700 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,107 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,435 |
| Satellite Images #1 | 0 | - | 4.47 | 129,336 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,275 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,892 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,894 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,964 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,938 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,817 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,514 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,967 |
| Merged Countries #2 | 0 | - | 4.96 | 98,993 |
| Merged Countries #6 | 0 | - | 4.90 | 73,203 |
| Merged Countries #7 | 0 | - | 4.93 | 82,550 |
| Geography by Picture - A | 0 | - | 4.39 | 60,231 |
| Geography by Picture - D | 0 | - | 4.15 | 45,648 |
| Geography by Picture - F | 0 | - | 4.31 | 50,986 |
| Geography by Picture - G | 0 | - | 4.38 | 47,938 |
| Geography by Picture - J | 0 | - | 4.16 | 38,455 |
| Geography by Picture - K | 0 | - | 4.29 | 33,120 |
| Geography by Picture - C | 0 | - | 4.31 | 57,055 |
| Geography by Picture - L | 0 | - | 4.37 | 58,941 |
| Geography by Picture - M | 0 | - | 4.14 | 40,446 |
| Geography by Picture - P | 0 | - | 4.24 | 42,428 |
| Geography by Picture - S | 0 | - | 4.38 | 47,034 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,335 |
| Islands by Picture | 0 | - | 4.29 | 106,854 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,543 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,728 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,819 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,041 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,661 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,816 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,651 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,819 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,730 |
| Island Countries | 0 | - | 4.99 | 710,087 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,312 |
| Himalayan Countries | 0 | - | 4.95 | 137,751 |
| Andean Countries | 0 | - | 4.95 | 84,093 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,329 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,864 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,963 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,443 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,663 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,138 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,793 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,877 |
| European Landlocked Countries | 0 | - | 4.99 | 146,862 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,237 |
| Countries with the Most Species | 0 | - | 4.99 | 103,004 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,396 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,619 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,818 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,215 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,536 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,468 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,283 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,205 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,781 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,372 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,022 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,625 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,371 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,993 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,259 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,276 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,350 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,732 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,439 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,042 |
| Largest Countries By Category | 0 | - | 4.97 | 157,785 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,325 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,486 |
| Merged Country Flags | 0 | - | 4.88 | 106,683 |
