The 1.0 announcement confirms that you can join your own tournament and receive prizes according to your final ranking. Check the current in-game event screen for its specific conditions.

Prepare as an organizer
Before an event, review stock, available space and the tasks your shop still needs to perform. Running an event should not hide a basic operating problem such as an empty product shelf.
Write down event expenses separately when comparing a normal day with a tournament day. Gross revenue alone is not a profit comparison.
Prepare as a player
Read your deck and make sure it is actually assembled in the Workbench. The planner can help you count copies and identify cards you still need, but the game remains the authority on legal construction.
Practice the same plan against customers before an event. Keep notes about recurring awkward hands instead of rebuilding the entire list after one loss.
Record useful results
Record the deck revision, event, outcome and what failed. A sample of one cannot establish that a deck is unbeatable or an event is the most profitable.
This guide deliberately avoids invented reward tables, precise win rates or an unsupported unlock ladder. Verify those details against your event interface.
Good questions. Clear answers.
Can I join a tournament I host?
Yes. The official 1.0 update explicitly adds player participation in hosted tournaments.
Source-reviewed . Recommendations are editorial guidance, not in-game benchmark results.
OPNeon Games — 1.0 update and launch FAQ Workbench unlock, playable TCG, Ascension, tournament participation, save transfer and multiplayer status.
TCG Card Shop Simulator — official Steam listing Game identity, management features, single-player classification and PC requirements.