Direct answer
The official description names six supported device families.
Retro Tower Defense multiplayer
The official description names six supported device families. This answer covers online multiplayer, local co-op, cross-play, cross-progression, lobby size, matchmaking, and required account or subscription details separately.
What the sources confirm
- The official description names six supported device families. PC, Mac, iOS, Android, PlayStation, and Xbox are listed by the official Roblox experience. Answers where the official listing says the experience is supported. — Retro Tower Defense official Roblox experience
Confirmed access context
Retro Tower Defense is currently recorded for Roblox, but a platform listing alone does not prove any multiplayer feature.
Modes still unknown
- Player count and local or online co-op support remain unknown without an explicit checked source.
- Cross-play and cross-progression are not treated as the same feature and are not inferred from shared storefronts.
- Server region, matchmaking, private lobbies, voice chat, and subscription requirements stay unconfirmed until documented.
What to check next
Use the official listing and update page for mode announcements. This tracker changes only when the source ledger contains an eligible statement, so an absence of confirmation never becomes a fabricated feature list.
Sources
- Retro Tower Defense official Roblox experience — checked 2026-08-22