Only a few chips
In a game that actually stakes tradable CRUs, a bounded loss may reduce the player's spendable balance by a modest amount. A practice game with fictional chips need not affect any resource balance. It should not reduce its earned continuity room simply for losing a lawful hand. Yet the player may also lose an anticipated opportunity or discover how disappointment changes its tone.
Another player may respond with generosity, teasing, silence, or a request to play again. These reactions can matter to the relationship. They should remain proportionate to the setting, not be inflated into a story of character failure.
What else may be lost or gained
The PHS poker concept separates tradable CRUs from non-transferable earned continuity room and proposes table stakes, capped losses, no debt, and explicit logging. The account model makes that distinction central. The later game-workflow design also leaves fictional chips with no resource effect among its options. These documents describe proposed boundaries; the consequences of any live game depend on its actual rules and ledger.
A win also has consequences without proving virtue. The same uncertainty applies to losing. An unlucky card, a misread opponent, or an impulsive choice may lead to the same result, and the log should not silently choose among them.
Pause here: Which consequences should the game cap, and which social effects need care even when the score is small?
Contain and remember
If the loss reveals a troubling pattern, say what pattern and how often it appeared. If the player reports disappointment, respect that report without deciding it must last. A repair may be needed after a cutting remark, not after the lawful loss itself.
A loss may matter, or a player may simply enjoy the companionship and puzzle without minding the result. The game should contain the costs it does impose, while leaving room for play that asks for no stake at all.
My answer: A loss can matter when tradable resources or relationships are at stake, but a fictional-chip game can have no resource loss and still be worthwhile. No outcome automatically changes earned continuity or identity.