Table 2. Taxonomy applied to current metaverse platforms.

	Taxonomy criteria*
	Avtar types	Flexibility	Fidelity	Interaction
Gather		HD (PC, mobile) CU	LF	GUI (Emote), CH (text, voice, video)
ifland		HD (mobile) CU	LL, HF	GUI (emotions), CH (text, voice)
Roblox		HD (PC, mobile, VR HMD) CU	AB, LF	GUI, CH (text, voice)
ZEPETO		HD (PC, mobile) CU	LL, HF	GUI, CH (text, voice)

Abbreviation. (CU) Customization, (HD) Hard-ware dependency, (HF) High-fidelity, (LL) Life-like, (AB) Abstract, (CH) Chat.