Opus Sentinel Encounter
The "Opus Sentinel Encounter" event in Stellaris — flavor, choices, and how to trigger it with the event console command.
Opus Sentinel Encounter

The hostile vessel occupying the … system appears far more erratic and dangerous than our initial scans suggested. Although its hull profile reads as a typical warship, the Opus Sentinel's sheer mass betrays a thoroughly dense interior, and likely a potent power source. We believe the vessel to be sapient, however a tendency to thrash its own engines implies intense pain and disorientation. Given that we have also observed lethal amounts of electromagnetic radiation arcing wildly throughout its hull, we recommend keeping a very conservative distance.
The command below will trigger the "Opus Sentinel Encounter" event in Stellaris:
Player choices
When this event fires, you can choose between the following option:
- Stay alert.
Firing conditions
Show raw conditions
from = {
has_star_flag = unplugged_machine_legacy_core_flag
any_fleet_in_system = { has_fleet_flag = machine_legacy_machine_core_fleet }
}
controller = {
NOT = {
has_country_flag = opus_sentinel_encounter
}
is_country_type = default
}