Choose Lightning: D-Day
Choose Lightning: D-Day if you want the Online PvP side of the pairing. On Steam, it's currently about 67% cheaper on the Steam Store. Lightning: D-Day launched in 2017.
Lightning: D-Day vs Unity of Command II
Lightning: D-Day and Unity of Command II both land in Strategy on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Strategy games on Steam. Lightning: D-Day (2017) is 2 years older than Unity of Command II (2019). Lightning: D-Day is currently ~67% cheaper on Steam than Unity of Command II (9.99 USD vs. 29.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose Unity of Command II
Choose Unity of Command II if you want an Indie and Simulation game with Shared/Split Screen PvP. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 1,130 Steam reviews back the pick.
Both Lightning: D-Day and Unity of Command II sit in Strategy on Steam and both list Multi-player, Shared/Split Screen, and PvP, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Lightning: D-Day |  Unity of Command II | |
|---|---|---|
| Released | 2017 | 2019 |
| Genres | Strategy | Strategy, Indie, Simulation |
| Platforms | Windows, macOS | Windows, macOS, Linux |
| Steam Deck | Unrated | Deck Verified |
| Price | 9.99 USD | 29.99 USD |
| Steam reviews | 2 reviews | 80.6% positive (1,130 reviews) |
| Multiplayer | Multi-player | Multi-player |
| Developers | HexWar Games | 2x2 Games, Croteam |
Side by side
- Both are Strategy games on Steam.
- Lightning: D-Day (2017) is 2 years older than Unity of Command II (2019).
- Lightning: D-Day is currently ~67% cheaper on Steam than Unity of Command II (9.99 USD vs. 29.99 USD).
- Unity of Command II is Deck Verified on Steam Deck; Lightning: D-Day has no Deck rating yet.
Lightning: D-Day vs Unity of Command II — FAQ
- Should I play Lightning: D-Day or Unity of Command II first?
- If you want chronology, Lightning: D-Day (2017) came out before Unity of Command II (2019). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Lightning: D-Day and Unity of Command II similar?
- They overlap on Strategy on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.