These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] games-simulation/simutrans-paksets-123.0.1::gentoo  USE="128 -comic192 -cs128 -excentrique48 -german128 -nippon64" 94699 KiB

Total: 1 package (1 new), Size of downloads: 94699 KiB