- Course to Venus walkthrough: Follow the ship investigation before searching for the vent key.
- Vent key: Check the black lunch box in the fridge at night after the related quest begins.
- Motion sensor: Use it in every ship room during nighttime searches.
- Ice route: Help the cruise ship, follow its coordinates, then trade the ice with the Indestructible 4.
- Progression fix: Complete lounge, television, and crew quests when the main investigation appears stuck.
Course to Venus Walkthrough Overview
Course to Venus uses quest flags, time-of-day conditions, and character interactions to control progression. When an objective appears inactive, the solution is usually to complete another ship activity first rather than repeat the same interaction.
The most common progression wall involves the vents. The vent key does not appear immediately, and checking the fridge too early may show no useful item. Continue the ship-search quest until the captain begins questioning how to open the vents. Then return to the fridge at night and inspect the black lunch box.
Video Highlights:
- The video presents a Course to Venus playthrough focused on the game’s story atmosphere.
- Use it as a visual reference for the general setting and progression style.
- Follow the written route below for specific objectives, item checks, and investigation steps.
| Progression Point | Required Action | Best Time to Check |
|---|---|---|
| Ship investigation | Continue other available quests until the vent objective activates | Day or evening |
| Vent key | Inspect the black lunch box in the fridge | Night |
| Motion sensor search | Scan every room on the ship | Night |
| Ice objective | Assist the cruise ship and follow the iceberg coordinates | Any available travel period |
| Ice trade | Return to the Indestructible 4 and exchange the ice | After collecting ice |
Investigation First
Advance the ship-search quest before repeatedly clicking the vents. The key may not be available during the opening stage.
Night Searches
Several clues and item interactions require nighttime conditions. Change the time period before checking the fridge or rooms.
Parallel Quests
Lounge, television, crew, and character tasks can unlock the next investigation flag when the main route pauses.
When a location produces the same standard message several times, stop repeating the interaction. Review every available quest, advance one elsewhere, and return after the next story flag appears.
How to Find the Vent Key
The vent key route is one of the most frequently requested solutions in the Course to Venus community. The important detail is that the black lunch box becomes relevant only after enough story progress has been made.
Start by examining the vents during the ship investigation. If the captain has not yet started wondering how to open them, continue the available quests. Once that dialogue or objective appears, switch to nighttime and inspect the fridge.
| Step | Location | Action | Expected Result |
|---|---|---|---|
| 1 | Ship vents | Inspect the vents during the active search quest | The captain considers how to open them |
| 2 | Fridge | Visit the fridge at night | The black lunch box becomes available |
| 3 | Black lunch box | Search the item | The vent key route advances |
| 4 | Vents | Return to the vents and interact again | The investigation continues |
Activate the Ship Search
Keep progressing through the ship’s available story tasks until the investigation specifically focuses on the vents. If the vent interaction only displays a generic message, the quest flag is not ready yet.
Change to Nighttime
Once the captain begins considering the problem, move to the nighttime period. The black lunch box may not appear during daytime checks.
Inspect the Fridge
Open the fridge and look for the black lunch box. Search it to obtain the clue or key needed for the vent route.
Return to the Vents
Go back to the vents and interact with them again. If the route still does not advance, complete another available quest and revisit the area later.
Checking the fridge repeatedly before the ship-search flag is active will not force the black lunch box to appear. Advance the story first, then search at night.
The following checks can help identify why the key is missing:
- The captain has not yet started the vent investigation.
- The game is still in a daytime period.
- The ship-search quest has not been advanced far enough.
- Another character or lounge objective is waiting to be completed.
- The current save has encountered a progression issue after an earlier interaction.
If the route remains blocked, save before testing the next quest step. This makes it easier to return to a stable point if a dialogue or interaction fails to trigger.
Motion Sensor Investigation Route
The motion sensor is used to search the ship at night. The safest method is to visit every accessible room and activate the sensor once in each location. Skipping a room can leave the objective incomplete even when several successful scans have already been recorded.
The search is best handled as a fixed route rather than random exploration. Begin from a central hallway, clear each room systematically, and avoid assuming that one successful detection completes the entire mission.
| Search Area | Required Action | Common Mistake |
|---|---|---|
| Main hallway | Use the motion sensor while moving between rooms | Assuming the hallway alone is enough |
| Crew rooms | Enter each available room and activate the sensor | Skipping rooms that appear empty |
| Lounge | Scan the room during the nighttime search | Treating television progress as unrelated |
| Sleeping areas | Check each accessible area individually | Leaving after the first detection |
| Remaining ship locations | Repeat the scan in every unlocked space | Ignoring rooms unlocked by another quest |
Room-by-Room Sweep
Check every accessible location instead of relying on one scan. A complete sweep is more reliable than searching only the room named in a hint.
Use the Correct Time
The motion-sensor objective is associated with nighttime exploration. If no progress occurs, confirm the current time period first.
Unlock Missing Areas
If a room cannot be entered, continue the main story or lounge sequence until the location becomes accessible.
Use the motion sensor once in every accessible ship room at night. Keep a written room list or follow the same route each time so no location is missed.
When the mission does not complete, do not assume the item is broken. First, check whether:
- Every currently unlocked room was scanned.
- The sensor was used at night rather than during the day.
- The lounge has been unlocked.
- The television-related objective has been completed.
- A newly opened room needs to be included in the search.
The motion sensor route may also serve as a prerequisite for later investigation content. Completing it before switching to unrelated objectives keeps the story flags easier to track.
Ice, Cruise Ship, and Indestructible 4 Route
The ice objective requires a short chain of travel and trading tasks. You do not simply pick up ice from a normal ship location. First, help the cruise ship enough times to receive coordinates leading to an iceberg in space.
After collecting the ice, return to the Indestructible 4 and trade it there. Players often stop after obtaining the item, but the exchange is the action that advances this part of the route.
| Stage | Destination | Objective | Progress Check |
|---|---|---|---|
| 1 | Cruise ship | Assist the ship several times | New coordinates become available |
| 2 | Iceberg location | Travel to the coordinates | Ice can be collected |
| 3 | Indestructible 4 | Return with the ice | Trade interaction becomes available |
| 4 | Trade location | Exchange the ice | The related objective progresses |
Help the Cruise Ship
Complete the available assistance tasks for the cruise ship. The coordinates are connected to repeated help rather than a single early visit.
Follow the Iceberg Coordinates
Once the cruise ship provides the location, travel to the indicated iceberg area in space. Search the destination for the ice resource.
Collect the Ice
Pick up the ice and keep it in your inventory. If the objective does not update immediately, leave the location and check the quest state.
Trade at the Indestructible 4
Return to the Indestructible 4 and use the trade interaction. This is the expected destination for the ice after collection.
The iceberg is the collection point, but the Indestructible 4 is the trade point. Returning to the original iceberg location will not replace the required exchange.
This route is separate from the vent-key path, but completing it can help maintain overall progression when the main investigation appears quiet. If no new dialogue appears after the trade, review your other open quests and check whether a character interaction is waiting at a specific time.
Progress Checklist and Troubleshooting
Course to Venus can appear stalled when a player has completed the visible part of an objective but not the prerequisite behind it. Use this checklist before treating the save as permanently blocked.
Investigation Progress Checklist:
- Advance the ship-search quest until the captain discusses opening the vents
- Check the fridge at night for the black lunch box
- Use the motion sensor in every accessible ship room at night
- Unlock and visit the lounge, then complete the television-related objective
- Help the cruise ship, collect ice at the iceberg, and trade it with the Indestructible 4
| Problem | Likely Cause | Recommended Fix |
|---|---|---|
| No black lunch box | Vent quest flag is not active | Inspect the vents and advance other quests |
| Sensor mission will not finish | One room was skipped | Scan every accessible room at night |
| No iceberg location | Cruise ship assistance is incomplete | Complete more cruise ship help tasks |
| Ice has no use | Trade step has not been completed | Return to the Indestructible 4 |
| Story dialogue disappears | Possible save or version issue | Reload an earlier save and retry the interaction |
The creator’s Course to Venus comments and player-help page includes additional troubleshooting around the vent key, nighttime sensor searches, ice trading, relationship limits, and save exports. Use it as a supplemental reference when a specific interaction behaves differently from the normal route.
If a dialogue window disappears, an interaction produces an error, or a quest refuses to update after every prerequisite is complete, reload an earlier save before repeating the sequence.
A practical recovery order is:
- Save in a separate slot.
- Complete any open lounge, television, crew, or character objective.
- Advance the time period and revisit the target location.
- Repeat the interaction only after the story flag has changed.
- If the issue persists, test an earlier save to determine whether the problem is progression-related.
Course to Venus Walkthrough FAQ
Q: Why can’t I find the vent key in Course to Venus?
Progress the ship-search quest until the captain starts considering how to open the vents. Then visit the fridge at night and search the black lunch box. If the item is missing, continue another available quest before checking again.
Q: Where should I use the motion sensor?
Use it at night in every accessible room and area of the ship. A complete room-by-room sweep is more reliable than checking only the location mentioned in the current hint.
Q: What should I do with the ice?
After helping the cruise ship, follow its coordinates to the iceberg location and collect the ice. Return to the Indestructible 4 and trade the ice there.
Q: How do I progress after the main investigation stops?
Review the lounge, television, crew, and character quests. Some progression flags require another objective to be completed before the investigation can continue.
The most dependable progression pattern is: advance the investigation, search at night, scan every accessible room, complete parallel quests, and return to the target location after the next story flag appears.