Version history

0.6.532

See upcoming features for future updates. Known bugs in the latest versions are listed here.

• Public versions were announced on the Developer Blog
• Quiet versions were recorded on the Changelog
• Silent versions were released without record
• Internal versions were not released to the public

Current version (Alpha 6)

Previous Version: [[Version/1.5.4241"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

Next Version: [[Version/0.0.232"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

"Error: Invalid time." contains an extrinsic dash or other characters that are invalid for a date interpretation.

Released on: –

---

It’s a whole new world! Here’s Alpha 6, the update with world generation, biomes, a medical system that tracks every wound and body part, and personality traits. You can follow our day-to-day work on the changelog.

If you own the game, you should get an update email from us. You can also get Alpha 6 by re-downloading from the link you used before (it is a permanent link and always has the newest version). Anyone still having trouble should start at this thread.

Also note that this build will not load old savegames, so keep your old install separate if you want to finish an Alpha 5 colony.

Changes

• World generation added. You can now generate a world from a seed value and choose where to land your escape pods.
• Biomes added. There are six biomes on the world map, but only three of them are implemented so far – desert, arid shrubland (the only choice, previously), and temperate forest.
• Obviously, biomes have distinct animal and plant life which present unique challenges and opportunities.
• Coastlines added. If you land on a seashore, your map will have a coastline in it (though it doesn’t do much, it’s fun to play on the beach.)
• Medical system added. Instead of simply having hit points, characters, animals, and mechanoids have a body health tracker that records every wound and every body part and how they interact. Wounds will affect specific abilities, so someone with eyes burned out can’t shoot or do surgery well, and someone with leg wounds will move slow. Wounds can also become permanent if left untreated, or kill someone due to bleeding.
• Pain level is tracked. A character in too much pain will become incapacitated.
• Doctors and medicine now have a purpose! Your doctor will attempt to heal wounded colonists and prisoner (if the prisoner is marked to receive care). If there is medicine available, he will use it to increase the chance of giving quality care. Wounds treated with quality care are much less likely to become permanent.
• Delicate body parts like brains or eyes usually end up with permanent damage when harmed.
• Characters now have personality traits which affect gameplay! Enjoy playing with colonists who are lazy or hardworking, neurotic, psychically sensitive or deaf, bloodlusty, or nudist.
• EMP weapons added. Useful for fighting mechanoids, and for enemies attacking your turrets.
• Spacey new menu music from Alistair Lindsay. More in-game music and sound effects from Al added as well.
• More translations added and existing translations updated.
• Lots of other small improvements and dozens of bug fixes, as well as new bugs to discover!

Recent versions (Alpha 5C, 5B, 5)

Previous Version: [[Version/1.5.4241"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

Next Version: [[Version/0.0.232"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

"Error: Invalid time." contains an extrinsic dash or other characters that are invalid for a date interpretation.

Released on: –

---

We’re back with another alpha of RimWorld! Alpha 5 brings on lots of juicy new features and improvements. You can follow our day-to-day work on the changelog.

If you own the game, you should get an update email from us. You can also get Alpha 5 by re-downloading from the link you used before (it is a permanent link and always has the newest version). Anyone still having trouble should start at this thread.

Also note that this build will not load old savegames, so keep your old install separate if you want to finish an Alpha 4 colony.

Core Release

• Sieges added. Raiders will now sometimes besiege the colony by setting up a fortified position nearby and bombarding you until you die or come out to break the siege. Of course this also means there are now researchable and buildable mortar weapons – both explosive and incendiary.
• Escape ship added. You can now, at great cost, build a ship to escape the planet if you wish.
• Crashed ancient ship part incident added. Sometimes this bad boy will crash-land nearby and start emitting an ever-increasing psychic drone that slowly drives colonists insane. Attack it to make it stop, but beware its defenses.
• New mechanoid type added – the scyther.
• Many new sound effects from the illustrious Alistair Lindsay.
• A new gear system allows changing out of clothing. Clothing now has basic effects, like reducing damage or movement speed.
• There is now an info card you can view for most things in the game. For weapons, it shows statistics about damage, accuracy, and so on. For animals, it displays health, damage, meat amounts. Lots of other things can be inspected as well.
• A game history tracker records the history of your colony in graphs of wealth, population, and happiness, as well as recording individual important events.
• Game history is now uploaded automatically to our servers after an opt-in prompt is agreed to. This uploads your game history – the same one you see on your history graph – to us to help us balance future versions.
• More translations added (Arabic, Chinese, Japanese, others) and existing translations updated.
• Language can now be switched by clicking the flag on the main game screen.
• Lots of other small improvements.

Alpha 5 Balance/Hotfix

You all knew a hotfix was coming! It’s like a tradition now!

The good thing is that this isn’t a bug hotfix, but a balance one. I’d been hearing a lot of reports that the global psychic drone event – causing -25 to mood – was harming play. So until I can rebalance it, it’s disabled in Alpha5b. The crashed ship part event seen in the release video is still present.

To update, you just have to change one number in one file:

Open Notepad or some other text editor.

With Notepad, open [YourRimWorldFolder]/Mods/Core/Defs/IncidentDefs/BaseIncidents.xml, and find this text:

<IncidentDef>
<defName>PsychicDrone</defName>
<workerClass>IncidentWorker_PsychicDrone</workerClass>
<chance>1.2</chance>
<minRefireDays>8</minRefireDays>
<favorability>Bad</favorability>
</IncidentDef>

Set <chance>1.2</chance> to <chance>0</chance>.

Or, you can re-download the game from your old link.

I’ll be reworking this event in future versions.

Alpha 5C (Silent Hotfix)

Released on: July 7, 2014

Changes

• Long eclipses no longer kill all the grass on the map

Alpha 5D

Released on: July 14, 2014

Changes

• No significant changes other than folder name change

Previous Version: [[Version/1.5.4241"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

Next Version: [[Version/0.0.232"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

"Error: Invalid time." contains an extrinsic dash or other characters that are invalid for a date interpretation.

Released on: –

---

We’re back with another alpha of RimWorld! Alpha 5 brings on lots of juicy new features and improvements. You can follow our day-to-day work on the changelog.

If you own the game, you should get an update email from us. You can also get Alpha 5 by re-downloading from the link you used before (it is a permanent link and always has the newest version). Anyone still having trouble should start at this thread.

Also note that this build will not load old savegames, so keep your old install separate if you want to finish an Alpha 4 colony.

Core Release

• Sieges added. Raiders will now sometimes besiege the colony by setting up a fortified position nearby and bombarding you until you die or come out to break the siege. Of course this also means there are now researchable and buildable mortar weapons – both explosive and incendiary.
• Escape ship added. You can now, at great cost, build a ship to escape the planet if you wish.
• Crashed ancient ship part incident added. Sometimes this bad boy will crash-land nearby and start emitting an ever-increasing psychic drone that slowly drives colonists insane. Attack it to make it stop, but beware its defenses.
• New mechanoid type added – the scyther.
• Many new sound effects from the illustrious Alistair Lindsay.
• A new gear system allows changing out of clothing. Clothing now has basic effects, like reducing damage or movement speed.
• There is now an info card you can view for most things in the game. For weapons, it shows statistics about damage, accuracy, and so on. For animals, it displays health, damage, meat amounts. Lots of other things can be inspected as well.
• A game history tracker records the history of your colony in graphs of wealth, population, and happiness, as well as recording individual important events.
• Game history is now uploaded automatically to our servers after an opt-in prompt is agreed to. This uploads your game history – the same one you see on your history graph – to us to help us balance future versions.
• More translations added (Arabic, Chinese, Japanese, others) and existing translations updated.
• Language can now be switched by clicking the flag on the main game screen.
• Lots of other small improvements.

Alpha 5 Balance/Hotfix

You all knew a hotfix was coming! It’s like a tradition now!

The good thing is that this isn’t a bug hotfix, but a balance one. I’d been hearing a lot of reports that the global psychic drone event – causing -25 to mood – was harming play. So until I can rebalance it, it’s disabled in Alpha5b. The crashed ship part event seen in the release video is still present.

To update, you just have to change one number in one file:

Open Notepad or some other text editor.

With Notepad, open [YourRimWorldFolder]/Mods/Core/Defs/IncidentDefs/BaseIncidents.xml, and find this text:

<IncidentDef>
<defName>PsychicDrone</defName>
<workerClass>IncidentWorker_PsychicDrone</workerClass>
<chance>1.2</chance>
<minRefireDays>8</minRefireDays>
<favorability>Bad</favorability>
</IncidentDef>

Set <chance>1.2</chance> to <chance>0</chance>.

Or, you can re-download the game from your old link.

I’ll be reworking this event in future versions.

Alpha 5C (Silent Hotfix)

Released on: July 7, 2014

Changes

• Long eclipses no longer kill all the grass on the map

Alpha 5D

Released on: July 14, 2014

Changes

• No significant changes other than folder name change

Previous Version: [[Version/1.5.4241"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

Next Version: [[Version/0.0.232"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

"Error: Invalid time." contains an extrinsic dash or other characters that are invalid for a date interpretation.

Released on: –

---

We’re back with another alpha of RimWorld! Alpha 5 brings on lots of juicy new features and improvements. You can follow our day-to-day work on the changelog.

If you own the game, you should get an update email from us. You can also get Alpha 5 by re-downloading from the link you used before (it is a permanent link and always has the newest version). Anyone still having trouble should start at this thread.

Also note that this build will not load old savegames, so keep your old install separate if you want to finish an Alpha 4 colony.

Core Release

• Sieges added. Raiders will now sometimes besiege the colony by setting up a fortified position nearby and bombarding you until you die or come out to break the siege. Of course this also means there are now researchable and buildable mortar weapons – both explosive and incendiary.
• Escape ship added. You can now, at great cost, build a ship to escape the planet if you wish.
• Crashed ancient ship part incident added. Sometimes this bad boy will crash-land nearby and start emitting an ever-increasing psychic drone that slowly drives colonists insane. Attack it to make it stop, but beware its defenses.
• New mechanoid type added – the scyther.
• Many new sound effects from the illustrious Alistair Lindsay.
• A new gear system allows changing out of clothing. Clothing now has basic effects, like reducing damage or movement speed.
• There is now an info card you can view for most things in the game. For weapons, it shows statistics about damage, accuracy, and so on. For animals, it displays health, damage, meat amounts. Lots of other things can be inspected as well.
• A game history tracker records the history of your colony in graphs of wealth, population, and happiness, as well as recording individual important events.
• Game history is now uploaded automatically to our servers after an opt-in prompt is agreed to. This uploads your game history – the same one you see on your history graph – to us to help us balance future versions.
• More translations added (Arabic, Chinese, Japanese, others) and existing translations updated.
• Language can now be switched by clicking the flag on the main game screen.
• Lots of other small improvements.

Alpha 5 Balance/Hotfix

You all knew a hotfix was coming! It’s like a tradition now!

The good thing is that this isn’t a bug hotfix, but a balance one. I’d been hearing a lot of reports that the global psychic drone event – causing -25 to mood – was harming play. So until I can rebalance it, it’s disabled in Alpha5b. The crashed ship part event seen in the release video is still present.

To update, you just have to change one number in one file:

Open Notepad or some other text editor.

With Notepad, open [YourRimWorldFolder]/Mods/Core/Defs/IncidentDefs/BaseIncidents.xml, and find this text:

<IncidentDef>
<defName>PsychicDrone</defName>
<workerClass>IncidentWorker_PsychicDrone</workerClass>
<chance>1.2</chance>
<minRefireDays>8</minRefireDays>
<favorability>Bad</favorability>
</IncidentDef>

Set <chance>1.2</chance> to <chance>0</chance>.

Or, you can re-download the game from your old link.

I’ll be reworking this event in future versions.

Alpha 5C (Silent Hotfix)

Released on: July 7, 2014

Changes

• Long eclipses no longer kill all the grass on the map

Alpha 5D

Released on: July 14, 2014

Changes

• No significant changes other than folder name change

Previous Version: [[Version/1.5.4241"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

Next Version: [[Version/0.0.232"" contains an extrinsic dash or other characters that are invalid for a date interpretation.]] Released on: –

"Error: Invalid time." contains an extrinsic dash or other characters that are invalid for a date interpretation.

Released on: –

---

We’re back with another alpha of RimWorld! Alpha 5 brings on lots of juicy new features and improvements. You can follow our day-to-day work on the changelog.

If you own the game, you should get an update email from us. You can also get Alpha 5 by re-downloading from the link you used before (it is a permanent link and always has the newest version). Anyone still having trouble should start at this thread.

Also note that this build will not load old savegames, so keep your old install separate if you want to finish an Alpha 4 colony.

Core Release

• Sieges added. Raiders will now sometimes besiege the colony by setting up a fortified position nearby and bombarding you until you die or come out to break the siege. Of course this also means there are now researchable and buildable mortar weapons – both explosive and incendiary.
• Escape ship added. You can now, at great cost, build a ship to escape the planet if you wish.
• Crashed ancient ship part incident added. Sometimes this bad boy will crash-land nearby and start emitting an ever-increasing psychic drone that slowly drives colonists insane. Attack it to make it stop, but beware its defenses.
• New mechanoid type added – the scyther.
• Many new sound effects from the illustrious Alistair Lindsay.
• A new gear system allows changing out of clothing. Clothing now has basic effects, like reducing damage or movement speed.
• There is now an info card you can view for most things in the game. For weapons, it shows statistics about damage, accuracy, and so on. For animals, it displays health, damage, meat amounts. Lots of other things can be inspected as well.
• A game history tracker records the history of your colony in graphs of wealth, population, and happiness, as well as recording individual important events.
• Game history is now uploaded automatically to our servers after an opt-in prompt is agreed to. This uploads your game history – the same one you see on your history graph – to us to help us balance future versions.
• More translations added (Arabic, Chinese, Japanese, others) and existing translations updated.
• Language can now be switched by clicking the flag on the main game screen.
• Lots of other small improvements.

Alpha 5 Balance/Hotfix

You all knew a hotfix was coming! It’s like a tradition now!

The good thing is that this isn’t a bug hotfix, but a balance one. I’d been hearing a lot of reports that the global psychic drone event – causing -25 to mood – was harming play. So until I can rebalance it, it’s disabled in Alpha5b. The crashed ship part event seen in the release video is still present.

To update, you just have to change one number in one file:

Open Notepad or some other text editor.

With Notepad, open [YourRimWorldFolder]/Mods/Core/Defs/IncidentDefs/BaseIncidents.xml, and find this text:

<IncidentDef>
<defName>PsychicDrone</defName>
<workerClass>IncidentWorker_PsychicDrone</workerClass>
<chance>1.2</chance>
<minRefireDays>8</minRefireDays>
<favorability>Bad</favorability>
</IncidentDef>

Set <chance>1.2</chance> to <chance>0</chance>.

Or, you can re-download the game from your old link.

I’ll be reworking this event in future versions.

Alpha 5C (Silent Hotfix)

Released on: July 7, 2014

Changes

• Long eclipses no longer kill all the grass on the map

Alpha 5D

Released on: July 14, 2014

Changes

• No significant changes other than folder name change

Complete Version List

Alpha

2014.08.13

0.6.532 (Alpha 6)

2014.07.14

0.5.496B (Alpha 5D)

2014.07.07

0.5.496 (Alpha 5C)

2014.07.06

0.5.492B (Alpha 5B)

2014.07.04

0.5.492 (Alpha 5)

2014.06.01

0.4.460 (Alpha 4)

2014.04.11

0.3.410 (Alpha 3)

2014.02.26

0.2.363 (Alpha 2)

2014.01.27

0.1.334 (Alpha 1)

2014.1.26

Internal 0.0.334

2014.1.25

Internal 0.0.333

2014.1.24

Internal 0.0.332

2014.1.23

Internal 0.0.331

Pre-Alpha

2014.1.22

Internal 0.0.330B

2014.1.22

Internal 0.0.330

2014.1.21

Internal 0.0.329

2014.1.20

Internal 0.0.328

2014.1.19

Internal 0.0.327

2014.1.17

Internal 0.0.325

2014.1.16

Internal 0.0.324

2014.1.15

Internal 0.0.323

2014.1.14

Internal 0.0.322

2014.1.13

Internal 0.0.321

2014.1.12

Internal 0.0.320

2014.1.10

Internal 0.0.318

2014.1.09

Internal 0.0.317B

2014.1.08

Internal 0.0.317

2014.1.06

Internal 0.0.314

2013.12.17

Internal 0.0.294

2013.11.07

0.0.254B (Pre-Alpha Backer 2)

2013.11.07

Internal 0.0.254

2013.11.06

Internal 0.0.253c

2013.11.06

Internal 0.0.253b

2013.11.06

Internal 0.0.253

2013.11.03

0.0.250 (Pre-Alpha Backer 1)

2013.11.03

Internal 0.0.250

2013.11.02

Internal 0.0.249a

2013.11.01

Internal 0.0.248

2013.10.31

Internal 0.0.247

2013.10.29

0.0.245 (Pre-Alpha Press Release 2)

2013.10.29

Internal 0.0.245

2013.10.27

Internal 0.0.243

2013.10.25

Internal 0.0.241

2013.10.24

Internal 0.0.240

2013.10.16

0.0.232 (Pre-Alpha Press Release 1)