Before you start
- Record your platform and installed build before following this guide.
Check the group’s platforms
Nintendo’s Canada listing identifies the September 9 Switch 2 release, cross-platform play, one player on one system and up to 24 online. Its online-play section lists Nintendo Switch Online. Check the membership and internet requirements on your own console before diagnosing a lobby.
Sources for this section
- Nintendo / LEMORION: Nintendo Canada: Switch 2 listing · Checked 2026-10-03
Get everyone into the same room
Agree on one host. Have the host share the room identity and any password shown by the game, then confirm those details in each player’s lobby browser. This is a coordination checklist; exact menu names and invite behaviour have not been verified. A Steam invite alone does not establish a Switch 2 join path.
- Update both game clients and reopen them.
- On Switch 2, inspect the crossplay setting before looking for the PC host.
- Use the room identity or join method displayed by the game, then confirm that each friend is present before starting.
Sources for this section
- LEMORION / Steam: Steam: PC listing · Checked 2026-10-03
- Nintendo / LEMORION: Nintendo Canada: Switch 2 listing · Checked 2026-10-03
Crossplay selected but still not enabled?
A player in the linked Switch 2 thread distinguishes highlighting the checkbox from enabling it: after selecting Crossplay, they report pressing A until a green check appears. Treat this as a reported UI check; Kingy has not reproduced it.
Sources for this section
- r/Meccha_Chameleon players: Switch 2 players: cannot join friends · Checked 2026-10-03
If nobody can join or you cannot join anyone
The same thread reports that synchronizing the console date and time with the internet helped one player; another says their clock was already synchronized and public rooms still failed. A correct clock does not prove that the network or room is healthy.
Sources for this section
- r/Meccha_Chameleon players: Switch 2 players: cannot join friends · Checked 2026-10-03
Separate discovery from joining
Record whether the room is absent, visible but rejected, or joins and then returns you to the title screen. Compare a fresh private room with a public room and, where possible, a same-platform session. Change one variable at a time and keep the exact error. These checks narrow the report; they do not diagnose a server outage.
Sources for this section
- r/Meccha_Chameleon players: Switch 2 players: cannot join friends · Checked 2026-10-03
Still unable to join?
Record PC/Switch 2 versions, host platform, room identity, crossplay state, clock state, error text and whether same-platform play succeeds. Send those details through the game’s official support route. Mixed-platform lobby creation, room-size parity and Workshop-map compatibility still need an actual two-device test.
Sources for this section
- r/Meccha_Chameleon players: Switch 2 players: cannot join friends · Checked 2026-10-03
- Nintendo / LEMORION: Nintendo Canada: Switch 2 listing · Checked 2026-10-03
Sources and how this guide was made
This guide uses the linked sources and any attributed demonstrations. Kingy has not independently play-tested these steps. Platform differences and limitations are noted with the advice they affect.
Coverage: Switch 2/PC sources checked October 3 · cross-device test pending. Research checked 2026-10-03. Updated 2026-10-03
Sources and coverage →