gamedesign.md: add inspirations

doc/gamedesign.md

@@ -135,7 +135,32 @@ A variety of relatively simple game systems should interact with each other to c
 
 # Inspiration
 
-TODO
+- Outer Wilds (not Outer Worlds)
+- Kerbal Space Program
+- Fallout New Vegas
+- Anathem
+- Baldur's Gate 3
+- Citizen Sleeper
+- Delta V: Rings of Saturn
+- Disco Elysium
+- Elite: Dangerous
+- Endless Sky
+- Firefly (2002 series)
+- Mass Effect
+- Nethack
+- Planescape: Torment
+- Prey (2017 game)
+- Project Hail Mary
+- RimWorld
+- Risk of Rain
+- Robot and Monk series
+- Shadowrun Returns: Dragonfall, Hong Kong
+- Stardew Valley
+- Stray (2022 game)
+- System Shock 2
+- The Expanse
+- The Forgotten City
+- The Red Strings Club
 
 # Survival Mechanics