The dark blue one behind the Moscow train? You must mean this one, on the narrow gauge track in the back; the FGV train.
It is the old (diesel powered) train from the Alicante - Benidorm - Denia metergauge line. Currently, a modernised version still runs on the section between Benidorm and Calp, while the rest of the line has been converted (with the remainder being converted now) to lightrail tram operation.
In the Alicante city center, the line runs underground, but that section has never known diesel operation (the old terminus station of the line still exists on the edge of the city center, and now functions as a small depot and tramstop).
You can download it here:
http://sim.bemined.nl/wiki/FGV_2300
It can be used on the narrow gauge part of the museum line, and on 'Denia - Rijndam Zuid' in Rijndam 2006 and Rijndam Railways 2022.