First separate paid features from the free update
A launch trailer can discuss an expansion and its accompanying free patch together. That does not put every shown feature behind the DLC. Ludeon's 1.5 announcement places hidden conduits and wall lamps in the base-game update; its 1.6 announcement separates the free update from Odyssey. Check the feature's section, not just the article headline.
Our purchase rule: if the one feature you want is in the free-update column, buy no expansion for that reason. Check your installed version and mods instead. Do not switch a valued colony to an unstable branch merely because an old announcement contains beta instructions.
| Feature you actually want | Ownership boundary | Decision |
|---|---|---|
| Hidden conduits or wall lamps | Free base-game update 1.5 | Do not buy Anomaly for these; inspect your build and research/material gates. |
| Colored/copyable plans or caravan camps | Free base-game update 1.6 | Do not buy Odyssey only for these interface/travel changes. |
| A gravship home that moves between maps and into orbit | Odyssey content | Compare Odyssey if a mobile base is the actual goal. |
| Capturing and studying supernatural entities | Anomaly content | Compare Anomaly if managing horror is welcome, not merely tolerated. |
| A soundtrack or Name in Game Access | Separate store products, not one of these five expansions | Read the exact cart item; music or a name reward does not supply an expansion's systems. |
References: Ludeon: Anomaly and base-game update 1.5 announcement · Ludeon: Odyssey and free update 1.6 announcement · RimWorld — Odyssey: official Steam listing · RimWorld — Anomaly: official Steam listing · RimWorld official Steam DLC catalogue
Choose the repeated task you want, not the longest feature list
The official listings establish the added systems. The 'commitment' and 'wait' columns are our interpretation of what those systems ask you to manage. They are not difficulty scores. An expansion can be the wrong first purchase even when you like its theme.
Biotech's three headline systems are different attractions, not a requirement to maximize all three at once. Royalty also describes tribal anima-tree and stolen-technology routes to psychic powers; Imperial obedience is not the only advertised route. Pick a small first-colony goal rather than treating the table as a shopping list.
| Expansion / distinct attraction | Commitment to accept | Wait if… |
|---|---|---|
| Royalty — psycasts, titles and Imperial permits | An Imperial route brings title-related room and status demands; psychic alternatives are also advertised. | You only want stronger gear without another progression decision. |
| Ideology — beliefs, precepts, roles and rituals | Your theme changes what colonists approve of; plan how its rules fit food, work and recruitment. | You want to learn ordinary needs without adding a custom social rule set. |
| Biotech — families, gene engineering or a mechanoid workforce | Choose a focus. Children need care; the advertised mech infrastructure creates toxic wastepacks. | You want automated workers but no new maintenance or waste decision. |
| Anomaly — containment, entity research and horror escalation | Reserve attention and space for studying threats, not just fighting a conventional raid. | Surprise horror or containment management is the part you dislike. |
| Odyssey — gravship exploration and orbit | Think in terms of a travelling home; the advertised space environments add vacuum and life-support concerns. | You want a permanent settlement and no reason to move it. |
References: RimWorld — Royalty: official Steam listing · RimWorld — Ideology: official Steam listing · RimWorld — Biotech: official Steam listing · RimWorld — Anomaly: official Steam listing · RimWorld — Odyssey: official Steam listing
Work through five purchase cases
These are invented decision examples, not player testimonials or completed colonies. Each starts with a desired change and a constraint. A useful recommendation must explain why an attractive alternative does not answer that particular request.
| Player's goal and constraint | Our first candidate | Why not the tempting alternative? |
|---|---|---|
| A long-lived family settlement; no interest in flying away | Biotech, focusing on families | Odyssey's mobile-home loop changes a different part of the game. |
| A strict themed society; no desire to engineer genes | Ideology | Biotech genes alter biology; they are not the same as choosing social beliefs. |
| Psychic tactical options; willing to inspect their progression | Royalty | Biotech-controlled mechanoids are a different combat/workforce system. |
| A deliberately unsettling containment campaign; basic economy already understood | Anomaly | Buying every DLC first adds unrelated decisions, not a clearer horror focus. |
| A base-game colony loses food to a broken freezer; budget allows one DLC | No purchase yet | No expansion is required to inspect enclosure, power, actual temperature and stockpile filters. |
References: RimWorld — Royalty: official Steam listing · RimWorld — Ideology: official Steam listing · RimWorld — Biotech: official Steam listing · RimWorld — Anomaly: official Steam listing · RimWorld — Odyssey: official Steam listing
Check the exact product and the missing dependency
Each of the five Steam listings names the base game as required. They do not present a chain in which Odyssey requires buying the four older expansions first. That does not mean a particular mod, scenario or cross-expansion feature has no extra dependency: check the thing you actually intend to use. A purchase will not fix an unsupported game branch.
Before checkout, write the exact cart item and its required base product. Soundtracks and Name in Game Access appear in the DLC catalogue alongside expansions. A bundle name is not a contents list, and these PC links do not establish console entitlements.
For a mod-driven purchase, record the mod URL, supported game build, required DLC and required framework mods. If its page requires Biotech, buying Ideology does not satisfy that requirement. If it only supports an older build, buying Biotech does not update its code. Preserve the old save and matching configuration before trying a fresh learning colony.
- Open the exact expansion listing and confirm the base game, operating system and account region.
- For a mod or scenario, read its separate build, DLC and mod requirements; list what is actually missing.
- Compare the standalone cart against only the wanted, unowned bundle contents. Exclude soundtracks unless you want the music.
- Retain an untouched save and mod list. Learn the chosen system in a separate colony before changing the valued one.
References: RimWorld — Royalty: official Steam listing · RimWorld — Ideology: official Steam listing · RimWorld — Biotech: official Steam listing · RimWorld — Anomaly: official Steam listing · RimWorld — Odyssey: official Steam listing · RimWorld official Steam DLC catalogue
Calculate the cost of extras, not an advertised percentage
Use the final totals shown to your own account in the same currency. Do not add a second base-game purchase if you already have the required entitlement. A lower price per item is not a saving when the additional items are unwanted.
Synthetic arithmetic, not a store quote: suppose the one wanted expansion totals 24 units and a bundle containing it totals 38. The extra content costs 38 − 24 = 14 units. If you do not want those extras, buying the standalone item spends 14 less. If two wanted standalone items total 24 + 20 = 44 and a bundle of those same two totals 38, the bundle spends 6 less. Taxes and ownership adjustments must already be included in the numbers you compare.
Stop when you can finish: 'I want this colony to __; the feature belongs to __; I accept managing __; the exact missing purchase is __.' If you cannot name the feature, wait. These links have no affiliate tracking and we have no reason to turn a no-purchase decision into a sale.
Desired change:
Paid expansion or free-update feature?:
Management task I am willing to add:
Already-owned base game / DLC:
Required build / DLC / mods for my chosen scenario:
Standalone final total / wanted bundle final total (same currency):
Decision: one expansion / wanted bundle / no purchase yetBefore you play
- Desired feature separated from free 1.5/1.6 base-game changes.
- Correct PC product, region and base-game entitlement checked.
- One new recurring management task deliberately accepted.
- Only wanted, unowned bundle items compared at final totals.
- Game build, DLC and mod dependencies checked separately.
- Save backup or fresh learning colony planned.
Frequently asked questions
Must I buy the expansions in release order?
No release-order chain is listed on the five linked Steam expansion pages; each requires the base game. A specific mod, scenario or combined feature may have additional requirements, so check it separately.
Does this compare console DLC too?
No. It compares five PC/Steam expansions, not console editions or their bundles. Verify the exact product on your console store.
Do I need Anomaly for hidden conduits or Odyssey for colored plans?
No. Ludeon lists hidden conduits in free update 1.5 and the improved planning tools in free update 1.6. Check your installed build and relevant in-game gates; those features alone are not reasons to buy the accompanying expansion.
Sources & revision notes
Editorial revision: October 27, 2026; not a gameplay test date. The reference notes identify source limits and version differences.
- RimWorld — Royalty: official Steam listing (Official)
Official product page read October 27, 2026 for the base-game requirement, titles/permits, room demands and alternative psychic routes. The wait recommendation is our analysis, not a played difficulty comparison.
- RimWorld — Ideology: official Steam listing (Official)
Official product page read October 27, 2026 for beliefs, precepts, roles and rituals plus the base-game requirement. No console availability or mod collection is certified.
- RimWorld — Biotech: official Steam listing (Official)
Official product page read October 27, 2026 for families, genes, mechanoid control and toxic-waste management. Synthetic shopping cases do not claim these systems were played by GamerWin.
- RimWorld — Anomaly: official Steam listing (Official)
Official product page read October 27, 2026 for horror, containment and entity research. Does not make free update 1.5 features exclusive to Anomaly.
- RimWorld — Odyssey: official Steam listing (Official)
Official product page read October 27, 2026 for gravships, orbit, vacuum and life support, and the base-game requirement. Current regional prices and performance are not reproduced.
- Ludeon: Anomaly and base-game update 1.5 announcement (Official)
March 13, 2024 announcement read October 27, 2026. Its separate base-game section includes wall lamps and hidden conduits; old unstable-branch instructions are historical, not today's installation advice.
- Ludeon: Odyssey and free update 1.6 announcement (Official)
June 11, 2025 announcement read October 27, 2026. Distinguishes the free update's planning and caravan-camp improvements from paid Odyssey. Does not establish the current default branch or guarantee performance.
- RimWorld official Steam DLC catalogue (Official)
Catalogue read October 27, 2026 to distinguish the five expansions from soundtracks and Name in Game Access. The item list and regional bundle contents should be rechecked at checkout.
October 27, 2026: rechecked five official PC expansion listings, separated free 1.5/1.6 features from paid content, added management trade-offs, five explicit purchase/no-purchase cases, product/dependency exclusions and synthetic bundle-cost arithmetic. No live prices, gameplay, current-branch or save-migration test is claimed.
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