What do we know of this mysterious race that inhabited the Earth many tens of centuries ago? Historic records and carvings shows strange hieroglyphs of non-human looking beings that were very dangerous. Some old dug up texts detail the mysterious sicknesses that plagued entire villages and large glowing orange balls in the sky that could decimate mountains. Came, annihilated and gone were they. Right around the return of Nibiru in 200 B.C. Rules are.. Win a Science Victory before turn 100 All default map settings. No Advanced Setup. Map size: Small Speed: Standard Difficulty: Diety Leader: Any Map: Any, Pangaea probably is best. Release for 64bit Windows. Version of CivilizationVI.exe 188.8.131.52 (221715), md5 741f0427612f6065251b581e4ad3ff95 GameCore_Base_FinalRelease.dll, md5 3a586ab50518fb45aa116eb456cf86ae Database_Win64_FinalRelease.dll, md5 c8e3d6c3aff5230c8582a5c5e1f31383 (In case anyone wants to try this challenge in the distant future) Other rules include anything goes except for game mechanic changing mods (that stop achievements), memory editing and debug commands like reveal map. You can obviously preview the map before playing it by using reveal all. Otherwise this challenge will be significantly more time consuming then it already is. Final win must be the turn the project completes. So if it is turn 99 and you need to end turn to complete the last piece of the project, this is a turn 100 win. Honourable mentions would be a win before the last return of Nibiru which would be before 200 BC. Here is a map I completed on turn 99. I have the entire game streamed and its without constant reloading to get lucky. Do not want to spoil the challenge for others though. Its one of the first maps I rolled, after trying to roll a better map in vain, went back to trying this one again. Some tips.. A perfect start is imperative, by turn 36 you should be ready to chop horsemen, every extra turn wasted here fighting barbs or etc will remove 1 or more turns from your final time. An ideal map will probably have a grassland woods/+hill spice or fox in the capital (the posted map does not). This can shave quite a few turns off the early game, snowballing catastrophically into late game. An ideal map will probably have 2 science city states, close neighbours and a total of 2 horses within second city range.