Poland's 10TP Light tank. Use Q and E to steer, and W and S to control speed.

Information:
The WBI design bureau was liquidated in 1934 and the project was interrupted by the more urgent 7TP. It was taken over by the newly established Design and Testing Centre of the Armoured Forces, but most of the original documentation has been lost or destroyed so it started almost from a blank page and on 10 March 1935 the 10TP officially started under supervision of Captain Rudolf Gundlach (the famous periscope designer). His team also comprised engineers Jan Lapuszewski, Stefan Oldakowski, Mieczyslaw Staszewski, Kazimierz Hejnowicz and process engineer Jerzy Napiórkowski. The design was advanced enough to be officially approved and included by the Armament and Equipment Committee (Komitet do spraw Uzbrojenia i Sprzetu, KSUS) in January 1936 to the 1936-42 armament projection plan.
It was specified to be given to four newly formed tank battalions and two motorised cavalry brigades. The final prototype was built by Experimental Workshop (WD), attached to the Ursus complex near Warsaw (PZInz), supervised by Captain Kazimierz Grüner. Because of the foreign engine and mechanical parts, delays amounted and the delivery did not occur before July 1938, it was ready eventually for tests on August, 16. Secret runs started under the supervision of the Trial and Experiment Department in the Bureau of Technical Studies on Armored Weapons headed by Captain Leon Czekalski. Trials stopped on 30 September to correct several minor defaults at the WD unit. Other long trips started from 16 January 1939 achieving a 2000km crash course on 25 April. Then it was completely dismantled at WD to check the wear on particular parts and assemblies and do extra corrections. Were detected and noted an above normal wear of the gearbox and clutches, excessive roadwheels and tracks fatigue, insufficient engine cooling and greater than expected fuel consumption.