The definitive source for a curated collection of 100 tabletop strategy games using only writing materials is Walter Joris's " 100 Strategic Games for Pen and Paper
(2 players)
" (Walter Joris): This 2002/2004 book is the gold standard for this niche. It features original strategic games like Black Hole , Killer Beans , and Billiards . Zen Guide to Pen and Paper Games 100 strategic games for pen and paper pdf new