Historical clue formulations

• Animals in an early-2000s virtual fad — 2026-02-28
• Virtual game described as a cross between Tamagotchi and Pokémon — 2023-07-07
• Website with adoptable virtual creatures — 2022-12-10
• Virtual critters since 1999 — 2022-05-24
• Virtual animals in an early 2000s fad — 2020-03-15
• Popular website with virtual animals — 2016-06-10