Frostrain 2 spends end-of-run Purple Coins on the next artifact pool

The end of a journey in Frostrain 2 is advertised as a chance to change the next one’s available tools. The developer says runs award Purple Coins, spent to unlock new artifacts. The persistent reward expands the synergy-building system rather than simply preserving the same train.

Inside a run, train cars are acquired, placed and upgraded to generate Happiness, which supports the Conductor’s authority. The description makes arrangement part of that output. It does not name a particular adjacency bonus or artifact effect, so the relationship between a specific unlock and a specific carriage remains something to inspect rather than invent.

The distinction between unlock and immediate possession matters. The page does not promise that a newly unlocked artifact appears in the very next run, nor explain coin awards for every failure state. What it does establish is a use for the run-ending currency outside the current arrangement.

If you enjoy assembling synergies, examine both decisions: how the present train generates Happiness, and which artifact options the completed trip can open. A run can end without making its arrangement permanent. The advertised coins offer another kind of continuation—the possibilities available for arranging a later train.