STEPPE
| Date | Clue |
|---|---|
| 2023-08-14 | Eurasian plain |
| 2019-05-10 | Overseas plain |
| 2019-05-09 | Siberian land feature |
| 2017-12-17 | Much of Mongolia |
| 2016-05-01 | "Great" Eurasian region |
| 2015-06-17 | Onetime home of the Huns |
| 2014-08-13 | Eurasian plain |
| 2013-12-09 | Treeless plain |
| 2013-08-29 | Vast treeless area |
| 2011-08-03 | Treeless tract |
| 2011-05-12 | Open grassland |
| 2011-04-11 | Siberian plain |
| 2011-02-06 | Plain |
| 2010-12-13 | Vast treeless plain |
| 2010-09-05 | Kazakh land feature |
| 2008-10-14 | Treeless plain |
| 2008-04-27 | Plain |
| 2008-04-23 | Part of the Kazakhstan landscape |
| 2007-08-08 | Grassy expanse |
| 2005-04-12 | Russian plain |
| 2001-08-03 | Unforested tract |
| 2000-08-09 | Treeless tract |
| 1999-07-10 | Ukrainian geographical feature |
| 1999-04-15 | Treeless plain |
| 1997-03-17 | Treeless plain |
| 1996-09-01 | Treeless tract |
| 1996-06-03 | Russian plain |
| 1994-11-21 | Russian grassland |
| 1993-12-06 | Treeless plain |