2. World At Arms (Windows) General hints and tips

The core of the game is building your base up into a military powerhouse. To do that, you need coins, troops, and the ability to produce those. Success involves growing your base in a balanced manner as rapidly as possible.

Fortunately, following an “ideal path” is definitely not required – it will just slow down your progress.

As you gain levels, you get access to more “advanced” purchase items. Unlike other games, it is definitely not true that higher level items are better. In many cases, a higher level item will be strictly inferior to one available at lower levels.

Money

There are four main currencies in the game: coins, gold stars, hearts, and thorium.

Coins can be earned in lots of different ways. You’ll use them for almost everything.

Gold stars are the premium currency. You can earn some by completing quests, or winning them as event awards. But the primary way to get gold stars is to spend real money on them. There are a handful of really nice things that you'll want that cost gold stars, so horde the stars for these special purchases.

Hearts are earned when you do social things: visiting ally’s bases, completing assistance missions, and completing social quests. Hearts are used to buy premium units.

Thorium is a new currency used for the underwater base and is basically irrelevant to the walkthrough. See notes about the underwater base below.

Space

One thing limiting you is the amount of space you have to grow your base. While the first few land expansions are very cheap, they get quite expensive very quickly. The cost of expansion maxes out at 370,000 coins. By the time you are around level 20, that won’t seem so expensive. However area expansions also take time – over 24 hours – which means you really need to plan ahead when you expand.

The exception is the island in the upper right of the map. Fixing the bridge to this island costs 500,000 coins, (and basically gets you nothing), while the land areas across the bridge cost an extra 125,000 coins per region. (So 625,000 for the first, 750,000 for the second, etc.). They also seem to take about an extra day for the expansion to complete. While there are some free buildings over there that you can eventually get, they aren’t worth the enormous additional expense. Only expand over there if you have used up all of the squares on the mainland.

Energy

You start the game with a small nuclear power plant, (a unique building that you can’t sell and no more are sold). Starting at level 5, you can build additional power plants. Power plants produce energy, raising the total energy available to other buildings.

Energy is not a “consumable” resource but acts as a building limit. Each building, (except power plants and boosters), requires a certain amount of energy to be built. If you later sell that building, the energy it was using is freed up and can be used to build something else. The energy gauge in your status bar indicates the amount of available power.

Curiously enough, if your energy level goes negative, (because you sold a power plant), nothing bad happens to your existing builds. You just can’t build any new buildings. This lets you sell power plants you have in order to upgrade them without having to worry about the gap during construction.

The available power plants are:

Name

Level

Cost

Size

Energy

Energy
per Sq.

Wind Power Plant

3

5,600

3x3

50

5.5

Geothermal Plant

11

21,500

3x3

180

20.0

Solar Power Plant

11

56 GS

3x3

600

66.6

Bio-Fuel Plant

17

54,000

3x3

300

33.3

TEC

21

70 GS

4x4

700

43.8

Ion Plant

24

75,000

5x5

450

18.0

Nuclear Plant

27

91 GS

3x3

850

94.4

Turbine Plant

32

90,000

4x4

520

32.5

ZPE

35

168 GS

5x5

1500

60.0

Coal Power Plant

40

110,000

4x4

600

37.5

Wind Turbine Plant

44

200,000

5x5

1100

44.0

The Wind Power Plant should be used as soon as it is available to help you expand your base. The Geothermal and Bio-Fuel plants are superior, and should replace Wind Power Plants as soon as it's practical. Note that like space expansions, good energy plants also take a long time to construct. Both space and energy are required before you can even begin construction of other buildings.

Income Buildings

Income buildings are buildings which produce coins for you. These buildings will be the most common buildings in your base. Here is a list of the income buildings:

Name

Level

Cost

Size

Income

Income
per
Hour

Income
per Sq-Hr

Mess Hall

1

140

2x2

35 / 1m

2100

525.0

Bar

1

10 GS

3x3

80 / 1m

4800

533.0

Military Cottage

4

310

2x2

160 / 5m

1920

480.0

Warehouse

6

700

3x3

400 / 30m

800

88.9

Apartment Complex

7

45 GS

8x8

5000 / 3h

1667

26.0

Modern House

10

1,700

3x3

540 / 1h

540

60.0

Administration

10

15 GS

3x3

1200 / 30m

2400

267.0

Black Market

12

2,500

3x3

850 / 4h

213

23.6

Embassy

12

55 GS

7x7

4300 / 3h

1433

29.2

Field Hospital

14

4,100

2x2

1400 / 5h

280

70.0

Hospital

14

25 GS

3x3

2000 / 2h

1000

111.0

Recruitment Center

19

6,600

4x4

1800 / 4.5h

400

25.0

Defense Department

19

35 GS

3x3

3500 / 4h

875

97.2

Junkyard

22

17,200

3x3

2900 / 8h

363

40.2

Weather Facility

22

40 GS

3x3

4200 / 6h

700

77.7

University

27

24,100

4x4

3300 / 3h

1100

68.8

Biological Institute

27

50 GS

3x3

3600 / 2h

1800

200.0

Chemical Lab

31

36,200

2x2

4500 / 10h

450

112.5

Micro-tech Lab

31

42 GS

2x2

5600 / 8h

700

175.0

Training Facilities

35

54,000

4x4

7200 / 12h

600

37.5

Open Cinema

35

50 GS

3x3

8640 / 8h

1080

120.0

Orbital Surveillance

39

81,000

4x4

10250 / 24h

427

26.7

Recreational Center

39

60 GS

3x3

12450 / 14h

889

98.8

Ammunition Plant

43

122,000

4x4

15560 / 18h

864

54.0

Military Academy

47

70 GS

4x4

23550 / 18h

1308

81.8

Modern Opera

48

120 GS

5x5

26820 / 16h

1676

67.0

Hotel 9MM

50

145 GS

5x5

30250 / 14h

2161

86.4

Water Park

52

268,000

4x4

19960 / 20h

998

62.4

The Crystal Casino

54

590,000

6x6

35800 / 22h

1627

45.2

The Mess Hall and Military Cottage stand out as the top income producers, but only if you are willing to collect continuously from them every minute. Beyond that, the Chemical Lab and Field Hospital are the most efficient income producers that you can buy for coins. The Field Hospital should be available about the same time you have the space and power to build large areas and you should make fields of them as income producers. When you reach level 31, you can switch to building Chemical Labs (but it’s not worth replacing the Field Hospitals until you have filled up the entire map).

If you have an odd shaped area where a 3x3 building can fit, a Chemical Lab surrounded by 5 guard shacks (4% boost each) gives a yield of 60 coins/hour/square; better than any other 3x3 building.

Note that the highest-level buildings are not the best income producers.

Oil

Oil is a resource used to wage war. You need oil to attack another player, fight a campaign story battle, or invade another base. Oil is limited in two ways: You need buildings that produce oil and buildings to store oil. Storage buildings increase the maximum amount of oil you can have at any given time.

The oil producing buildings are:

Name

Level

Cost

Size

Oil

Oil per
Hour

Oil per
Hr-Sq

Oil Well

3

1,400

2x2

2 / 3m

40

10.0

Oil Tower

3

25 GS

2x2

5 / 3m

100

25.0

Oil Lake

17

4,500

4x4

30 / 1h

30

1.9

Petrol Market

21

40 GS

3x3

45 / 30m

90

10.0

Oil Drill

26

14,600

5x5

40 / 1.5h

27

1.1

Heavy Refinery

33

42 GS

4x4

70 / 1.5h

47

2.9

Refinery

36

36,900

3x3

55 / 3h

18

2.0

You will generally be relying on Oil Lakes once they become available. While Wells are more efficient, you must collect from them every 3 minutes to reap their full benefits. Each production building also acts like storage as well; you can have your storage full plus your production buildings ready to collect giving you a larger amount of oil immediately available.

Refineries are very slightly more productive and can store more “uncollected” oil, but are less energy efficient.

The oil storage buildings are:

Name

Level

Cost

Size

Oil

Oil per
Square

Oil Storage

8

2,500

3x3

5

0.56

Gas Station

8

20 GS

2x2

15

3.75

Local Oil Storage

14

23,000

3x3

25

2.78

Underground Depot

17

30 GS

4x4

30

1.88

Gas Depot

22

15,500

4x4

20

1.25

Huge Oil Storage

26

50 GS

4x4

50

3.22

Storage Terminal

29

91 GS

4x4

160

10.00

Local Oil Storage is the best option available for coins. It becomes available fairly quickly and never becomes obsolete.

Military Buildings

Military buildings produce troops and weapons for your army. There aren’t a lot of practical options here. For example, to produce ground troops, you can either pay coins for a Barracks or pay gold stars for an Elite Barracks, (which can produce troops at a lower cost). There are other buildings for producing armored vehicles and aircraft.

Also in the military buildings category is the Weapons Workshop which creates power-ups. These are basically weapons you can deploy in a battle to either boost your stats, reduce your opponent’s stats, heal your units or deal direct damage to the enemy units.

The Military Council is a special building which costs gold stars. It provides you a bonus to attack and defense; a bonus that increases the more allies you have. I would not spend gold stars here until after you unlock Prometheus. It also takes a full week to build.

The Development Facility lets you build buildings that improve your attack and defense. These bonuses apply to every battle you fight, (although they take up space and energy). You need this for an achievement, but otherwise I didn’t find it useful.

Lastly is the Fusion Center, which lets you merge a unit with a power-up to create a boosted version of that unit. These fusions are very expensive and very time consuming. Since units only last for a certain number of battles before they have to be replaced, I thought that this was a complete waste of money.

Special Buildings

There are three special buildings: The Tax Office, Oil Collector, and Research Center. The Tax Office lets you automatically collect coins from all nearby production buildings. The Oil Collector does the same for oil producing buildings. Basically, it’s a way to avoid having to click on as many buildings to collect oil/coins. The trade-off is that the place where the building is located isn’t producing anything else. They also have a relatively short range. Other than the quest which required them, I never used them.

There is no in-game description of the Research Center. It allows you to research permanent improvements to some buildings, (like giving an X% bonus to all energy buildings). However, the center costs 500,000 coins to build, and these upgrades cost tens of thousands of Thorium or millions of coins. You are not likely to have that much in either currency in the course of this walkthrough.

Boosters

Boosters are basically city decorations which add a percent bonus to the things around them. For income buildings, they increase the income produced. Energy buildings have their power output increased. Oil buildings have their production or storage capacity increased. Military buildings have their construction time decreased.

In general, I never used boosters at all. In order for a booster to be a better value than just buying another one of the buildings being boosted, it would have to have a bonus that is higher per square. For example, the best income buildings are 2x2. There are a few ways to arrange boosters to boost those income buildings:

  • You could make a grid of income buildings with “streets” separating them. The boosters on the corner would boost 4 buildings while the boosters on the side would boost 2 buildings. Since the booster is only taking up 1 square, it would have to provide a total boost of 25% which means that the 2 building boosters have to be 12.5% and the corner boosters would have to be 6.25%
  • Instead of a grid, you can make rows, so the “streets” go in only one direction. Every booster boosts 4 buildings in this arrangement but the same math above applies.
  • You could make solid grid of income buildings with a 2x2 booster hole surrounded by boosters. If the booster was 1x1, it would be boosting 3 buildings and would need to be 8.3%. If the booster was 2x2, it would be boosting 8 buildings and would need to be 12.5%

However, the best booster at a reasonable cost is the 1x1 guard shack, which boosts only 4%.

The boosters which cost coins that do provide enough of a bonus is the small park (2x2, 17% at 150,000 coins) and the war plane (2x2, 35% at 250,000 coins). However, because they are so expensive, it takes the war plane 1587 hours or nearly 10 weeks for the extra income to pay for its cost. The small park takes 3703 hours or nearly 22 weeks to pay for itself. So it’s totally not worth it.

There are a few premium boosters that you might get in quest rewards that are worth it. You can also use boosters in squares where there isn’t room for a full building (like along the rivers).

One other important comment about boosters: When you earn an achievement, (both Xbox achievements and in-game goals), you’ll get a trophy booster. Don’t place those boosters on your map. They have no benefit, and can’t be sold or removed from the map. They can only be moved to a new location. Effectively, you have now permanently lost one square of your map.

Prometheus

Prometheus is a heavy duty battle machine that can fight on both land and air. It is wicked powerful! However, you need to spend 100 gold stars to unlock it. If you’re going to spend actual money on this game, this is the first thing I would buy. Otherwise, you can eventually get 100 Stars through quest rewards.

Once purchased, it requires oil to power it, (so buy lots more oil lakes), and both coins & hearts to upgrade it. You should definitely upgrade it as much as possible as it is easily your best unit in the game. (And unlike other units, it never needs replacing).

Underwater Base

When you reach level 28, you will unlock the underwater base. If you’re just looking at getting all of the achievements, you should ignore this. You’ll probably be in the low 30’s when you get all of the achievements and none are connected with the underwater area.

Things in the underwater base are really, really expensive. The things that cost coins, (mostly the Thorium miners), cost millions of coins and take days to build. Everything else costs large amounts of Thorium.

If you plan to play well beyond the minimum needed to get all of the achievements, you’ll eventually want to build up this base as well. But even then, I would initially give it low priority.

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