| All Country Flags of the World | 0 | - | 5.00 | 3,630,560 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,281 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,810 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,470 |
| Flags with Crescents | 0 | - | 4.98 | 168,463 |
| Country Flag Trivia | 0 | - | 4.81 | 56,414 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,991 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,924 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,548 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,847 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,391 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,824 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,164 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,681 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,802 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,576 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,322 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,319 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,075 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,062 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,889 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,107 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,198 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,963 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,659 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,145 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,488 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,877 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,041 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,029 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,341 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,535 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,671 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,232 |
| Flags of North and South America | 0 | - | 4.99 | 370,202 |
| Flags to Languages | 0 | - | 4.95 | 173,022 |
| Former Flags | 0 | - | 4.97 | 107,176 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,780 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,203 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,101 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,416 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,824 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,173 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,353 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,886 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,977 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,990 |
| Flag Maths | 0 | - | 4.64 | 57,707 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,924 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,190 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,607 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,541 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,377 |
| World Coats of Arms | 0 | - | 4.99 | 64,140 |
| Similar Flags #1 | 0 | - | 4.74 | 129,506 |
| Similar Flags #2 | 0 | - | 4.74 | 136,792 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,950 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,264 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,578 |
| Emoji Flags | 0 | - | 4.35 | 43,929 |
| Countries by Road Signs | 0 | - | 4.98 | 53,419 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,252 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,104 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,510 |
| Select the World Flags | 0 | - | 4.27 | 37,568 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,563 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,728 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,190 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,855 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,991 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,790 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,344 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,645 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,129 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,561 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,208 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,724 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,161 |
| Pixelated World Map | 0 | - | 5.00 | 142,884 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,946 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,750 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,060 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,071 |
| Boundary Waters | 0 | - | 4.92 | 88,234 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,969 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,656 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,811 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,124 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,040 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,622 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,976 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,153 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,727 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,240 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,984 |
| Geography by Picture - B | 0 | - | 4.42 | 55,501 |
| Geography by Picture - H | 0 | - | 4.50 | 58,117 |
| Geography by Picture - N | 0 | - | 4.45 | 42,114 |
| Geography by Picture - R | 0 | - | 4.56 | 40,937 |
| Geography by Picture - T | 0 | - | 4.54 | 57,751 |
| Flags of Oceania | 0 | - | 5.00 | 257,016 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,510 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,703 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,415 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,787 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,241 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,167,592 |
| Flags of WW1 | 0 | - | 4.60 | 38,166 |
| Landlocked Countries | 0 | - | 4.99 | 416,704 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,042 |
| Satellite Images #1 | 0 | - | 4.46 | 129,177 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,140 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,779 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,778 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,885 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,649 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,784 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,375 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,348 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,286 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,545 |
| World Capitals Quiz | 0 | - | 5.00 | 5,050,927 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,960 |
| Himalayan Countries | 0 | - | 4.95 | 136,523 |
| Andean Countries | 0 | - | 4.95 | 83,499 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,764 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,019 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,433 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,032 |
| Danube Countries | 0 | - | 4.97 | 71,437 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,220 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,852 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,166 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,143 |
| European Landlocked Countries | 0 | - | 4.99 | 146,135 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,771 |
| Countries with the Most Species | 0 | - | 4.99 | 101,698 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,904 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,331 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,511 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,162 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,811 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,194 |
| Countries in the Alps | 0 | - | 4.86 | 117,336 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,911 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,907 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,253 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,746 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,830 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,256 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,993 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,996 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,808 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,332 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,368 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,205 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,002 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,007 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,724 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,897 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,433 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,252 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,040 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,575 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,830 |
| Largest Countries By Category | 0 | - | 4.97 | 157,263 |
| Countries by Countries | 0 | - | 4.96 | 62,594 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,879 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,082 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Merged Country Flags | 0 | - | 4.88 | 106,332 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,758 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,399 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,325 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,087 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,925 |
| Merged Countries #2 | 0 | - | 4.96 | 98,719 |
| Merged Countries #6 | 0 | - | 4.90 | 72,957 |
| Merged Countries #7 | 0 | - | 4.93 | 82,224 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,077 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,639 |
| Geography by Picture - A | 0 | - | 4.39 | 60,131 |
| Geography by Picture - D | 0 | - | 4.15 | 45,559 |
| Geography by Picture - F | 0 | - | 4.31 | 50,894 |
| Geography by Picture - G | 0 | - | 4.38 | 47,866 |
| Geography by Picture - J | 0 | - | 4.16 | 38,385 |
| Geography by Picture - K | 0 | - | 4.29 | 33,060 |
| Geography by Picture - C | 0 | - | 4.31 | 56,988 |
| Geography by Picture - L | 0 | - | 4.37 | 58,849 |
| Geography by Picture - M | 0 | - | 4.14 | 40,387 |
| Geography by Picture - P | 0 | - | 4.24 | 42,357 |
| Geography by Picture - S | 0 | - | 4.38 | 46,968 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,942 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,324 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,617 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,262 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,853 |
| Longest International Borders | 0 | - | 4.99 | 264,307 |
| Countries with Three Borders | 0 | - | 4.96 | 36,347 |
