🇷🇴 Romania
One of Romania’s most important MilSims: around 40 hours of non-stop play for 700+ players on a 500-hectare former military base in the Carpathian foothills near Sibiu.
OVERLOAD has been running since 2011 on the grounds of the former military unit at Mârșa, Sibiu County – one of the most complex airsoft locations in Romania. The whole site covers around 500 hectares, and the active game area is 200–400 hectares depending on the scenario, with 400–1,700 m between objectives. The name means ‘overload’ – and the organisers make it clear this is not a casual weekend game but a MilSim that demands preparation, discipline and managing your energy.
OVERLOAD 2026 ‘Op. GHOSTS’ (the 11th edition) brought together 709 players from Romania and abroad for 39 hours. Two armies – Dragons and Panthers – fought over fortified HQs, a fort and domination points, while a new civilian village in the centre added LARP characters such as a cartel, sheriffs, a governor and a priest. Factions camp in prepared forest areas (no electricity) and the organisers run a tractor shuttle to the far camp.
Mârșa / Avrig, Sibiu County is about 340 km from Sofia as the crow flies. It is close enough for a team road trip. Always check the organiser’s rules on replica transport, FPS/joule limits and tickets on the official channels before you book.
Dates
Europe’s MilSims
Constanța, Black Sea coast · Romania
Romania’s Black Sea coast MILSIM: a 16-hour day-and-night operation at ACC Airsoft Hub in Constanța – the closest big international game to north-east Bulgaria.
Dobroslavtsi, Sofia · Bulgaria
A 40-hour weekend MilSim on the former Dobroslavtsi air base just outside Sofia, with three factions – and regularly described as the biggest MilSim event in Bulgaria.
Near Dragoman, Sofia Province · Bulgaria
One of Bulgaria’s longest-running MilSims: a 36-hour large-scale military simulation across the huge terrain of Viskyar mountain west of Sofia.
New gameplay every month
Full games, gear unboxings and loadout setups – filmed on the field with helmet, scope and action cams.
